commit ef8b7f1899742f19532563a913ca2aa1ce06551e
Author: Paul <poggel.paul@gmail.com>
Date:   Fri Nov 6 14:34:52 2020 +0100

    inital commit

diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100755
index 0000000..73f69e0
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/
diff --git a/.idea/.idea.Lernmaschine.dir/.idea/contentModel.xml b/.idea/.idea.Lernmaschine.dir/.idea/contentModel.xml
new file mode 100755
index 0000000..50f9fd6
--- /dev/null
+++ b/.idea/.idea.Lernmaschine.dir/.idea/contentModel.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ContentModelStore">
+    <e p="A:\Documents\TH\Software Design (SD)\Lernmaschine" t="IncludeFlat" />
+    <e p="C:\Users\pogge\.Rider2019.2\system\extResources" t="IncludeRecursive" />
+    <e p="C:\Users\pogge\.Rider2019.2\system\resharper-host\local\Transient\ReSharperHost\v192\SolutionCaches\_.19.00" t="ExcludeRecursive" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/.idea.Lernmaschine.dir/.idea/encodings.xml b/.idea/.idea.Lernmaschine.dir/.idea/encodings.xml
new file mode 100755
index 0000000..df87cf9
--- /dev/null
+++ b/.idea/.idea.Lernmaschine.dir/.idea/encodings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
+</project>
\ No newline at end of file
diff --git a/.idea/.idea.Lernmaschine.dir/.idea/indexLayout.xml b/.idea/.idea.Lernmaschine.dir/.idea/indexLayout.xml
new file mode 100755
index 0000000..d1a9292
--- /dev/null
+++ b/.idea/.idea.Lernmaschine.dir/.idea/indexLayout.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ContentModelUserStore">
+    <attachedFolders />
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/.idea.Lernmaschine.dir/.idea/modules.xml b/.idea/.idea.Lernmaschine.dir/.idea/modules.xml
new file mode 100755
index 0000000..3d8c454
--- /dev/null
+++ b/.idea/.idea.Lernmaschine.dir/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/.idea.Lernmaschine.dir/riderModule.iml" filepath="$PROJECT_DIR$/.idea/.idea.Lernmaschine.dir/riderModule.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/.idea.Lernmaschine.dir/.idea/projectSettingsUpdater.xml b/.idea/.idea.Lernmaschine.dir/.idea/projectSettingsUpdater.xml
new file mode 100755
index 0000000..7f5e4fe
--- /dev/null
+++ b/.idea/.idea.Lernmaschine.dir/.idea/projectSettingsUpdater.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RiderProjectSettingsUpdater">
+    <option name="vcsConfiguration" value="1" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/.idea.Lernmaschine.dir/.idea/workspace.xml b/.idea/.idea.Lernmaschine.dir/.idea/workspace.xml
new file mode 100755
index 0000000..165b8f6
--- /dev/null
+++ b/.idea/.idea.Lernmaschine.dir/.idea/workspace.xml
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ChangeListManager">
+    <list default="true" id="c8a6dd35-bd73-41a6-8138-e3c505948118" name="Default Changelist" comment="" />
+    <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="ProjectId" id="1W4mMCkZNJ7uEHGXWplDRtQzO5G" />
+  <component name="PropertiesComponent">
+    <property name="Rider.DefaultBreakpoints.AreToggled" value="true" />
+    <property name="Rider.ProjectViewActivator.IsNotFirstRun" value="true" />
+    <property name="WebServerToolWindowFactoryState" value="false" />
+  </component>
+  <component name="RunDashboard">
+    <option name="ruleStates">
+      <list>
+        <RuleState>
+          <option name="name" value="ConfigurationTypeDashboardGroupingRule" />
+        </RuleState>
+        <RuleState>
+          <option name="name" value="StatusDashboardGroupingRule" />
+        </RuleState>
+      </list>
+    </option>
+  </component>
+  <component name="SvnConfiguration">
+    <configuration />
+  </component>
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="c8a6dd35-bd73-41a6-8138-e3c505948118" name="Default Changelist" comment="" />
+      <created>1578417191806</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1578417191806</updated>
+      <workItem from="1578417195185" duration="39000" />
+    </task>
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="1" />
+  </component>
+  <component name="UnityProjectConfiguration" hasMinimizedUI="null" />
+  <component name="UnityUnitTestConfiguration" currentTestLauncher="NUnit" />
+  <component name="VcsManagerConfiguration">
+    <option name="LOCAL_CHANGES_DETAILS_PREVIEW_SHOWN" value="true" />
+  </component>
+  <component name="XDebuggerManager">
+    <breakpoint-manager>
+      <breakpoints>
+        <breakpoint enabled="true" suspend="NONE" type="DotNet Exception Breakpoints">
+          <properties exception="System.Threading.ThreadAbortException" displayValue="System.Threading.ThreadAbortException" />
+          <option name="timeStamp" value="1" />
+        </breakpoint>
+      </breakpoints>
+    </breakpoint-manager>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/.idea.Lernmaschine.dir/riderModule.iml b/.idea/.idea.Lernmaschine.dir/riderModule.iml
new file mode 100755
index 0000000..cea4207
--- /dev/null
+++ b/.idea/.idea.Lernmaschine.dir/riderModule.iml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="RIDER_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$/../.." />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/artifacts/Lernmaschine_jar.xml b/.idea/artifacts/Lernmaschine_jar.xml
new file mode 100755
index 0000000..d761c98
--- /dev/null
+++ b/.idea/artifacts/Lernmaschine_jar.xml
@@ -0,0 +1,23 @@
+<component name="ArtifactManager">
+  <artifact type="jar" name="Lernmaschine:jar">
+    <output-path>$PROJECT_DIR$/out/artifacts/Lernmaschine_jar</output-path>
+    <root id="archive" name="Lernmaschine.jar">
+      <element id="module-output" name="Lernmaschine" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/ant.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/bloat-1.0.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-bench.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-cs-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-all-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-taj-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-core-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-osgi-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-nqopt-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-tools-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-db4ounit-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-optional-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-osgi-test-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-cs.optional-java5.jar" path-in-jar="/" />
+      <element id="extracted-dir" path="$PROJECT_DIR$/libs/lib/db4o-8.0.276.16149-instrumentation-java5.jar" path-in-jar="/" />
+    </root>
+  </artifact>
+</component>
\ No newline at end of file
diff --git a/.idea/description.html b/.idea/description.html
new file mode 100755
index 0000000..db5f129
--- /dev/null
+++ b/.idea/description.html
@@ -0,0 +1 @@
+<html>Simple <b>Java</b> application that includes a class with <code>main()</code> method</html>
\ No newline at end of file
diff --git a/.idea/dictionaries/paul.xml b/.idea/dictionaries/paul.xml
new file mode 100755
index 0000000..8819e93
--- /dev/null
+++ b/.idea/dictionaries/paul.xml
@@ -0,0 +1,10 @@
+<component name="ProjectDictionaryState">
+  <dictionary name="paul">
+    <words>
+      <w>lerhrveranstaltung</w>
+      <w>lerndokument</w>
+      <w>lerndokumente</w>
+      <w>speicherort</w>
+    </words>
+  </dictionary>
+</component>
\ No newline at end of file
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100755
index 0000000..97626ba
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="PROJECT" charset="UTF-8" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/libraries/lib.xml b/.idea/libraries/lib.xml
new file mode 100755
index 0000000..a831a27
--- /dev/null
+++ b/.idea/libraries/lib.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="lib">
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/libs/lib" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="file://$PROJECT_DIR$/libs/lib" />
+    </SOURCES>
+    <jarDirectory url="file://$PROJECT_DIR$/libs/lib" recursive="false" />
+    <jarDirectory url="file://$PROJECT_DIR$/libs/lib" recursive="false" type="SOURCES" />
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100755
index 0000000..1d882b8
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavadocGenerationManager">
+    <option name="OUTPUT_DIRECTORY" value="$PROJECT_DIR$/../Java Doc" />
+    <option name="OPTION_SCOPE" value="private" />
+  </component>
+  <component name="ProjectKey">
+    <option name="state" value="project://e2804f05-5315-4fc6-a121-c522a6c26470" />
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="false" project-jdk-name="11.0.5" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100755
index 0000000..f0136df
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Lernmaschine.iml" filepath="$PROJECT_DIR$/Lernmaschine.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/project-template.xml b/.idea/project-template.xml
new file mode 100755
index 0000000..1f08b88
--- /dev/null
+++ b/.idea/project-template.xml
@@ -0,0 +1,3 @@
+<template>
+  <input-field default="com.company">IJ_BASE_PACKAGE</input-field>
+</template>
\ No newline at end of file
diff --git a/.idea/uiDesigner.xml b/.idea/uiDesigner.xml
new file mode 100755
index 0000000..e96534f
--- /dev/null
+++ b/.idea/uiDesigner.xml
@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Palette2">
+    <group name="Swing">
+      <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
+      </item>
+      <item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
+        <default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
+        <initial-values>
+          <property name="text" value="Button" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="RadioButton" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="CheckBox" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
+        <initial-values>
+          <property name="text" value="Label" />
+        </initial-values>
+      </item>
+      <item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
+          <preferred-size width="150" height="-1" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
+          <preferred-size width="150" height="50" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
+          <preferred-size width="200" height="200" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
+      </item>
+      <item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
+      </item>
+      <item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
+          <preferred-size width="-1" height="20" />
+        </default-constraints>
+      </item>
+      <item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
+        <default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
+      </item>
+      <item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
+        <default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
+      </item>
+    </group>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Help.jpg b/Help.jpg
new file mode 100755
index 0000000..aa4bb8b
Binary files /dev/null and b/Help.jpg differ
diff --git a/Lernmaschine.iml b/Lernmaschine.iml
new file mode 100755
index 0000000..fb8e866
--- /dev/null
+++ b/Lernmaschine.iml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="lib" level="project" />
+  </component>
+</module>
\ No newline at end of file
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--- /dev/null
+++ b/libs/lib/.svn/entries
@@ -0,0 +1 @@
+12
diff --git a/libs/lib/.svn/format b/libs/lib/.svn/format
new file mode 100755
index 0000000..48082f7
--- /dev/null
+++ b/libs/lib/.svn/format
@@ -0,0 +1 @@
+12
diff --git a/libs/lib/.svn/pristine/02/02d924bbfdb3c244d3841769ceceb3feda839fec.svn-base b/libs/lib/.svn/pristine/02/02d924bbfdb3c244d3841769ceceb3feda839fec.svn-base
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index 0000000..9215dec
--- /dev/null
+++ b/libs/lib/.svn/pristine/02/02d924bbfdb3c244d3841769ceceb3feda839fec.svn-base
@@ -0,0 +1,54 @@
+<html>
+<head>
+<title>The Apache Software License</title>
+<Style>
+BODY, P, TD { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt; color: #666666 }
+H2,H3,H4,H5 { color: black; font-weight: bold; }
+H2 { font-size: 13pt; }
+H3 { font-size: 12pt; }
+H4 { font-size: 10pt; color: black; }
+
+</style>
+</head>
+<body bgcolor="#FFFFFF" color=#000000>
+    The Apache Software License, Version 1.1<br />
+    <br />
+    Copyright (C) 2000-2002 The Apache Software Foundation. All rights reserved.<br />
+    <br />
+    Redistribution and use in source and binary forms, with or without modification,
+    are permitted provided that the following conditions are met:&nbsp;<br />
+    <ol>
+        <li>Redistributions of source code must retain the above copyright notice, this list
+            of conditions and the following disclaimer.&nbsp;</li>
+        <li>Redistributions in binary form must reproduce the above copyright notice, this list
+            of conditions and the following disclaimer in the documentation and/or other materials
+            provided with the distribution.&nbsp;</li>
+        <li>The end-user documentation included with the redistribution, if any, must include
+            the following acknowledgment: "This product includes software developed by the Apache
+            Software Foundation (<a href="http://www.apache.org/">http://www.apache.org/</a>)."
+            Alternately, this acknowledgment may appear in the software itself, if and wherever
+            such third-party acknowledgments normally appear.&nbsp;</li>
+        <li>The names "Ant" and "Apache Software Foundation" must not be used to endorse or
+            promote products derived from this software without prior written permission. For
+            written permission, please contact apache@apache.org. </li>
+        <li>Products derived from this software may not be called "Apache", nor may "Apache"
+            appear in their name, without prior written permission of the Apache Software Foundation.
+        </li>
+    </ol>
+    <p>
+        THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
+        BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+        PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION
+        OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+        OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+        GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+        CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+        TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+        SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+    </p>
+    <p>
+        This software consists of voluntary contributions made by many individuals on behalf
+        of the Apache Software Foundation. For more information on the Apache Software Foundation,
+        please see &lt;<a href="http://www.apache.org/">http://www.apache.org/</a>&gt;</p>
+</body>
+</html>
\ No newline at end of file
diff --git a/libs/lib/.svn/pristine/07/07aa064d87ae08b8af4798a36a5839300f0fd310.svn-base b/libs/lib/.svn/pristine/07/07aa064d87ae08b8af4798a36a5839300f0fd310.svn-base
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index 0000000..e34c8e5
--- /dev/null
+++ b/libs/lib/.svn/pristine/07/07aa064d87ae08b8af4798a36a5839300f0fd310.svn-base
@@ -0,0 +1,40 @@
+<html>
+<head>
+<title>3rd Party</title>
+<Style>
+BODY, P, TD { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt; color: #666666 }
+H2,H3,H4,H5 { color: black; font-weight: bold; }
+H2 { font-size: 13pt; }
+H3 { font-size: 12pt; }
+H4 { font-size: 10pt; color: black; }
+
+</style>
+</head>
+<body bgcolor="#FFFFFF" color=#000000>
+    <p>
+        This distribution comes with the 3rd party libraries listed below.
+        <br />
+        These are not needed for plain db4o operation, but only for specific use cases involving
+        native query optimization.
+    </p>
+    <p>
+        bloat-1.0.jar
+        <br />
+        http://www.cs.purdue.edu/s3/projects/bloat/
+        <br />
+        Needed for bytecode analysis during native query optimization. Must be on the runtime
+        classpath for optimization at load or query execution time, must be present during
+        the Ant build for class file optimization.
+    </p>
+    <p>
+        ant.jar
+        <br />
+        http://ant.apache.org/
+        <br />
+        Needed for the native query optimization Ant task.
+    </p>
+    <p>
+        Please refer to the license files for these libraries as well as to the Licensing
+        and Native Query Optimization chapter in the tutorial for further information.</p>
+</body>
+</html>
\ No newline at end of file
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diff --git a/libs/lib/.svn/pristine/a0/a080a5fdb072a9ffa789b3419c6a6d1a8e01b218.svn-base b/libs/lib/.svn/pristine/a0/a080a5fdb072a9ffa789b3419c6a6d1a8e01b218.svn-base
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diff --git a/libs/lib/.svn/pristine/b8/b8739ad7188d517aeb74c55ebdc856969c013747.svn-base b/libs/lib/.svn/pristine/b8/b8739ad7188d517aeb74c55ebdc856969c013747.svn-base
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diff --git a/libs/lib/.svn/pristine/b8/b88a4887b426d0bc71e2be1ae07f5fe7c92d846b.svn-base b/libs/lib/.svn/pristine/b8/b88a4887b426d0bc71e2be1ae07f5fe7c92d846b.svn-base
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diff --git a/libs/lib/.svn/pristine/cc/cc2ddeab547504594aea9283898dcdb3d8cff010.svn-base b/libs/lib/.svn/pristine/cc/cc2ddeab547504594aea9283898dcdb3d8cff010.svn-base
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--- /dev/null
+++ b/libs/lib/.svn/pristine/cc/cc2ddeab547504594aea9283898dcdb3d8cff010.svn-base
@@ -0,0 +1,384 @@
+<html>
+<head>
+<title>GNU GENERAL PUBLIC LICENSE</title>
+<Style>
+BODY, P, TD { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt; color: #666666 }
+H2,H3,H4,H5 { color: black; font-weight: bold; }
+H2 { font-size: 13pt; }
+H3 { font-size: 12pt; }
+H4 { font-size: 10pt; color: black; }
+</style>
+</head>
+<body bgcolor="#FFFFFF" color=#000000 style="text-align: justify">
+    <h2>
+        GNU GENERAL PUBLIC LICENSE
+        <br />
+    </h2>
+    Version 2, June 1991
+    <br />
+    Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+    <br />
+    59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+    <br />
+    Everyone is permitted to copy and distribute verbatim copies of this license document,
+    but changing it is not allowed.
+    <br />
+    <br />
+    <p>
+        Preamble</p>
+    <p>
+        The licenses for most software are designed to take away your freedom to share and
+        change it. By contrast, the GNU General Public License is intended to guarantee
+        your freedom to share and change free software--to make sure the software is free
+        for all its users. This General Public License applies to most of the Free Software
+        Foundation's software and to any other program whose authors commit to using it.
+        (Some other Free Software Foundation software is covered by the GNU Library General
+        Public License instead.) You can apply it to your programs, too.
+        <br />
+    </p>
+    <p>
+        When we speak of free software, we are referring to freedom, not price. Our General
+        Public Licenses are designed to make sure that you have the freedom to distribute
+        copies of free software (and charge for this service if you wish), that you receive
+        source code or can get it if you want it, that you can change the software or use
+        pieces of it in new free programs; and that you know you can do these things.
+        <br />
+    </p>
+    <p>
+        To protect your rights, we need to make restrictions that forbid anyone to deny
+        you these rights or to ask you to surrender the rights. These restrictions translate
+        to certain responsibilities for you if you distribute copies of the software, or
+        if you modify it.
+        <br />
+        <br />
+        For example, if you distribute copies of such a program, whether gratis or for a
+        fee, you must give the recipients all the rights that you have. You must make sure
+        that they, too, receive or can get the source code. And you must show them these
+        terms so they know their rights.
+        <br />
+        <br />
+        We protect your rights with two steps: (1) copyright the software, and (2) offer
+        you this license which gives you legal permission to copy, distribute and/or modify
+        the software.
+        <br />
+        <br />
+        Also, for each author's protection and ours, we want to make certain that everyone
+        understands that there is no warranty for this free software. If the software is
+        modified by someone else and passed on, we want its recipients to know that what
+        they have is not the original, so that any problems introduced by others will not
+        reflect on the original authors' reputations.
+        <br />
+        <br />
+        Finally, any free program is threatened constantly by software patents. We wish
+        to avoid the danger that redistributors of a free program will individually obtain
+        patent licenses, in effect making the program proprietary. To prevent this, we have
+        made it clear that any patent must be licensed for everyone's free use or not licensed
+        at all.
+        <br />
+        <br />
+        The precise terms and conditions for copying, distribution and modification follow.
+        <br />
+    </p>
+    <p>
+        GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+        <br />
+        <br />
+        0. This License applies to any program or other work which contains a notice placed
+        by the copyright holder saying it may be distributed under the terms of this General
+        Public License. The "Program", below, refers to any such program or work, and a
+        "work based on the Program" means either the Program or any derivative work under
+        copyright law: that is to say, a work containing the Program or a portion of it,
+        either verbatim or with modifications and/or translated into another language. (Hereinafter,
+        translation is included without limitation in the term "modification".) Each licensee
+        is addressed as "you".
+        <br />
+        <br />
+        Activities other than copying, distribution and modification are not covered by
+        this License; they are outside its scope. The act of running the Program is not
+        restricted, and the output from the Program is covered only if its contents constitute
+        a work based on the Program (independent of having been made by running the Program).
+        Whether that is true depends on what the Program does.
+        <br />
+        <br />
+        1. You may copy and distribute verbatim copies of the Program's source code as you
+        receive it, in any medium, provided that you conspicuously and appropriately publish
+        on each copy an appropriate copyright notice and disclaimer of warranty; keep intact
+        all the notices that refer to this License and to the absence of any warranty; and
+        give any other recipients of the Program a copy of this License along with the Program.
+        <br />
+        <br />
+        You may charge a fee for the physical act of transferring a copy, and you may at
+        your option offer warranty protection in exchange for a fee.
+        <br />
+        <br />
+        2. You may modify your copy or copies of the Program or any portion of it, thus
+        forming a work based on the Program, and copy and distribute such modifications
+        or work under the terms of Section 1 above, provided that you also meet all of these
+        conditions:
+        <br />
+        a) You must cause the modified files to carry prominent notices stating that you
+        changed the files and the date of any change.
+        <br />
+        b) You must cause any work that you distribute or publish, that in whole or in part
+        contains or is derived from the Program or any part thereof, to be licensed as a
+        whole at no charge to all third parties under the terms of this License.
+        <br />
+        c) If the modified program normally reads commands interactively when run, you must
+        cause it, when started running for such interactive use in the most ordinary way,
+        to print or display an announcement including an appropriate copyright notice and
+        a notice that there is no warranty (or else, saying that you provide a warranty)
+        and that users may redistribute the program under these conditions, and telling
+        the user how to view a copy of this License. (Exception: if the Program itself is
+        interactive but does not normally print such an announcement, your work based on
+        the Program is not required to print an announcement.)
+        <br />
+        <br />
+        These requirements apply to the modified work as a whole. If identifiable sections
+        of that work are not derived from the Program, and can be reasonably considered
+        independent and separate works in themselves, then this License, and its terms,
+        do not apply to those sections when you distribute them as separate works. But when
+        you distribute the same sections as part of a whole which is a work based on the
+        Program, the distribution of the whole must be on the terms of this License, whose
+        permissions for other licensees extend to the entire whole, and thus to each and
+        every part regardless of who wrote it.
+        <br />
+        <br />
+        Thus, it is not the intent of this section to claim rights or contest your rights
+        to work written entirely by you; rather, the intent is to exercise the right to
+        control the distribution of derivative or collective works based on the Program.
+        <br />
+        <br />
+        In addition, mere aggregation of another work not based on the Program with the
+        Program (or with a work based on the Program) on a volume of a storage or distribution
+        medium does not bring the other work under the scope of this License.
+        <br />
+        <br />
+        3. You may copy and distribute the Program (or a work based on it, under Section
+        2) in object code or executable form under the terms of Sections 1 and 2 above provided
+        that you also do one of the following:
+        <br />
+        a) Accompany it with the complete corresponding machine-readable source code, which
+        must be distributed under the terms of Sections 1 and 2 above on a medium customarily
+        used for software interchange; or,
+        <br />
+        b) Accompany it with a written offer, valid for at least three years, to give any
+        third party, for a charge no more than your cost of physically performing source
+        distribution, a complete machine-readable copy of the corresponding source code,
+        to be distributed under the terms of Sections 1 and 2 above on a medium customarily
+        used for software interchange; or,
+        <br />
+        c) Accompany it with the information you received as to the offer to distribute
+        corresponding source code. (This alternative is allowed only for noncommercial distribution
+        and only if you received the program in object code or executable form with such
+        an offer, in accord with Subsection b above.)
+        <br />
+        <br />
+        The source code for a work means the preferred form of the work for making modifications
+        to it. For an executable work, complete source code means all the source code for
+        all modules it contains, plus any associated interface definition files, plus the
+        scripts used to control compilation and installation of the executable. However,
+        as a special exception, the source code distributed need not include anything that
+        is normally distributed (in either source or binary form) with the major components
+        (compiler, kernel, and so on) of the operating system on which the executable runs,
+        unless that component itself accompanies the executable.
+        <br />
+        <br />
+        If distribution of executable or object code is made by offering access to copy
+        from a designated place, then offering equivalent access to copy the source code
+        from the same place counts as distribution of the source code, even though third
+        parties are not compelled to copy the source along with the object code.
+        <br />
+        <br />
+        4. You may not copy, modify, sublicense, or distribute the Program except as expressly
+        provided under this License. Any attempt otherwise to copy, modify, sublicense or
+        distribute the Program is void, and will automatically terminate your rights under
+        this License. However, parties who have received copies, or rights, from you under
+        this License will not have their licenses terminated so long as such parties remain
+        in full compliance.
+        <br />
+        <br />
+        5. You are not required to accept this License, since you have not signed it. However,
+        nothing else grants you permission to modify or distribute the Program or its derivative
+        works. These actions are prohibited by law if you do not accept this License. Therefore,
+        by modifying or distributing the Program (or any work based on the Program), you
+        indicate your acceptance of this License to do so, and all its terms and conditions
+        for copying, distributing or modifying the Program or works based on it.
+        <br />
+        <br />
+        6. Each time you redistribute the Program (or any work based on the Program), the
+        recipient automatically receives a license from the original licensor to copy, distribute
+        or modify the Program subject to these terms and conditions. You may not impose
+        any further restrictions on the recipients' exercise of the rights granted herein.
+        You are not responsible for enforcing compliance by third parties to this License.
+        <br />
+        <br />
+        7. If, as a consequence of a court judgment or allegation of patent infringement
+        or for any other reason (not limited to patent issues), conditions are imposed on
+        you (whether by court order, agreement or otherwise) that contradict the conditions
+        of this License, they do not excuse you from the conditions of this License. If
+        you cannot distribute so as to satisfy simultaneously your obligations under this
+        License and any other pertinent obligations, then as a consequence you may not distribute
+        the Program at all. For example, if a patent license would not permit royalty-free
+        redistribution of the Program by all those who receive copies directly or indirectly
+        through you, then the only way you could satisfy both it and this License would
+        be to refrain entirely from distribution of the Program.
+        <br />
+        <br />
+        If any portion of this section is held invalid or unenforceable under any particular
+        circumstance, the balance of the section is intended to apply and the section as
+        a whole is intended to apply in other circumstances.
+        <br />
+        <br />
+        It is not the purpose of this section to induce you to infringe any patents or other
+        property right claims or to contest validity of any such claims; this section has
+        the sole purpose of protecting the integrity of the free software distribution system,
+        which is implemented by public license practices. Many people have made generous
+        contributions to the wide range of software distributed through that system in reliance
+        on consistent application of that system; it is up to the author/donor to decide
+        if he or she is willing to distribute software through any other system and a licensee
+        cannot impose that choice.
+        <br />
+        <br />
+        This section is intended to make thoroughly clear what is believed to be a consequence
+        of the rest of this License.
+        <br />
+        <br />
+        8. If the distribution and/or use of the Program is restricted in certain countries
+        either by patents or by copyrighted interfaces, the original copyright holder who
+        places the Program under this License may add an explicit geographical distribution
+        limitation excluding those countries, so that distribution is permitted only in
+        or among countries not thus excluded. In such case, this License incorporates the
+        limitation as if written in the body of this License.
+        <br />
+        <br />
+        9. The Free Software Foundation may publish revised and/or new versions of the General
+        Public License from time to time. Such new versions will be similar in spirit to
+        the present version, but may differ in detail to address new problems or concerns.
+        <br />
+        <br />
+        Each version is given a distinguishing version number. If the Program specifies
+        a version number of this License which applies to it and "any later version", you
+        have the option of following the terms and conditions either of that version or
+        of any later version published by the Free Software Foundation. If the Program does
+        not specify a version number of this License, you may choose any version ever published
+        by the Free Software Foundation.
+        <br />
+        <br />
+        10. If you wish to incorporate parts of the Program into other free programs whose
+        distribution conditions are different, write to the author to ask for permission.
+        For software which is copyrighted by the Free Software Foundation, write to the
+        Free Software Foundation; we sometimes make exceptions for this. Our decision will
+        be guided by the two goals of preserving the free status of all derivatives of our
+        free software and of promoting the sharing and reuse of software generally.
+        <br />
+        <br />
+        NO WARRANTY
+        <br />
+        <br />
+        11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE
+        PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED
+        IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
+        WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED
+        TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+        THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD
+        THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR
+        OR CORRECTION.
+        <br />
+        <br />
+        12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
+        COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM
+        AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
+        INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+        PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE
+        OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE
+        WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
+        THE POSSIBILITY OF SUCH DAMAGES.
+        <br />
+        <br />
+        END OF TERMS AND CONDITIONS
+        <br />
+        <br />
+        How to Apply These Terms to Your New Programs
+        <br />
+        <br />
+        If you develop a new program, and you want it to be of the greatest possible use
+        to the public, the best way to achieve this is to make it free software which everyone
+        can redistribute and change under these terms.
+        <br />
+        <br />
+        To do so, attach the following notices to the program. It is safest to attach them
+        to the start of each source file to most effectively convey the exclusion of warranty;
+        and each file should have at least the "copyright" line and a pointer to where the
+        full notice is found.&nbsp;<br />
+        <br /></p>
+       <blockquote><p>
+        &lt;one line to give the program's name and a brief idea of what it does.&gt;<br/>
+    
+        Copyright (C) &lt;year&gt; &lt;name of author&gt;
+    </p>
+       
+<p>
+        This program is free software; you can redistribute it and/or modify it under the
+        terms of the GNU General Public License as published by the Free Software Foundation;
+        either version 2 of the License, or (at your option) any later version.
+    </p>
+   <p> 
+        This program
+        is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+        even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+        See the GNU General Public License for more details. 
+    </p>
+   <p>
+        You should have received a
+        copy of the GNU General Public License along with this program; if not, write to
+        the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+        USA </p>
+    </blockquote>
+    <p>
+        Also add information on how to contact you by electronic and paper mail. 
+    </p>
+    <p>
+        If
+        the program is interactive, make it output a short notice like this when it starts
+        in an interactive mode: 
+    </p>
+    <blockquote>
+        Gnomovision version 69, Copyright (C) year name of author
+        <br />
+        Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.<br />
+        This is
+        free software, and you are welcome to redistribute it under certain conditions;
+        type `show c' for details. 
+    </blockquote>
+    <p>
+        The hypothetical commands `show w' and `show c' should
+        show the appropriate parts of the General Public License. Of course, the commands
+        you use may be called something other than `show w' and `show c'; they could even
+        be mouse-clicks or menu items
+        -whatever suits your program. 
+    </p>
+    <p>
+        You should also get
+        your employer (if you work as a programmer) or your school, if any, to sign a "copyright
+        disclaimer" for the program, if necessary. Here is a sample; alter the names: 
+    </p>
+    
+<blockquote>    
+    <p>
+        Yoyodyne,
+        Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which
+        makes passes at compilers) written by James Hacker.</p>
+    <p>
+        &lt;signature of Ty Coon&gt;,
+        1 April 1989 <br />Ty Coon, President of Vice 
+    </p>
+   </blockquote> 
+    <p>
+        This General Public License does not permit
+        incorporating your program into proprietary programs. If your program is a subroutine
+        library, you may consider it more useful to permit linking proprietary applications
+        with the library. If this is what you want to do, use the GNU Library General Public
+        License instead of this License.
+    </p>
+</body>
+</html>
\ No newline at end of file
diff --git a/libs/lib/.svn/pristine/d0/d04c56a6a57f9c2551d28d3f384763cefe9628f0.svn-base b/libs/lib/.svn/pristine/d0/d04c56a6a57f9c2551d28d3f384763cefe9628f0.svn-base
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diff --git a/libs/lib/.svn/pristine/f4/f46052bc57d87e628d848506ba3806e0a592ef7c.svn-base b/libs/lib/.svn/pristine/f4/f46052bc57d87e628d848506ba3806e0a592ef7c.svn-base
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+++ b/libs/lib/.svn/pristine/f4/f46052bc57d87e628d848506ba3806e0a592ef7c.svn-base
@@ -0,0 +1,144 @@
+<html>
+<head>
+<title>Readme</title>
+<Style>
+BODY, P, TD { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt; color: #666666 }
+H2,H3,H4,H5 { color: black; font-weight: bold; }
+H2 { font-size: 13pt; }
+H3 { font-size: 12pt; }
+H4 { font-size: 10pt; color: black; }
+</style>
+</head>
+<body bgcolor="#FFFFFF" color=#000000>
+    This folder contains library files, which you can use in your projects.
+    <br />
+    <br />
+    <table>
+        <tr>
+            <td style="width: 300px">
+                ant.jar</td>
+            <td style="width: 500px">
+                ant build tool, used to build db4o sources (<a href="http://ant.apache.org/">http://ant.apache.org/</a>)</td>
+        </tr>
+        <tr>
+            <td style="width: 380px">
+                bloat-1.0.jar</td>
+            <td style="width: 500px">
+                bytecode optimization library, used to optmize Native Queries and Transparent Activation</td>
+        </tr>
+    	<tr>
+        	<td style="width: 380px">
+            	db4o-8.0.276.16149-all-java5.jar</td>
+        	<td style="width: 500px">
+            	no-dependency jar with all db4o binaries for JDK 5 and JDK 6</td>
+    	</tr>
+        <tr>
+           <td style="width: 380px">
+               db4o-8.0.276.16149-bench.jar</td>
+           <td style="width: 500px">
+               IO benchmark library
+           </td>
+		</tr>
+    <tr>
+        <td style="width: 380px">
+            db4o-8.0.276.16149-core-java5.jar</td>
+        <td style="width: 500px">
+            db4o database engine core for JDK 5 and JDK 6</td>
+    </tr>
+        <tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-cs-java5.jar</td>
+            <td style="width: 500px">
+                db4o client/server components for JDK 5 and JDK 6</td>
+        </tr>
+        <tr>
+          <td style="width: 380px">
+              db4o-8.0.276.16149-db4ounit-java1.5.jar
+          </td>
+          <td style="width: 500px">
+             testing framework for db4o needs for JDK 5 and JDK 6
+          </td>
+		</tr>
+        <tr>
+           <td style="width: 380px">
+               db4o-8.0.276.16149-instrumentation.jar</td>
+           <td style="width: 500px">
+               Instrumentation layer on top of bloat
+           </td>
+		</tr>
+		<tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-nqopt.jar</td>
+            <td style="width: 500px">
+                Native Query optimization library. This library should be available in the classpath
+                for NQ optimization</td>
+        </tr>
+        <tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-optional-java5.jar</td>
+            <td style="width: 500px">
+                db4o optional components for JDK 5 and JDK 6</td>
+        </tr>
+		<tr>
+            <td style="width: 380px">
+               db4o-8.0.276.16149-osgi.jar</td>
+           <td style="width: 500px">
+               db4o for OSGi. See <a href="../doc/osgi/index.html">OSGi API documentation</a>.</td>
+		</tr>
+        <tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-osgi-test.jar</td>
+            <td style="width: 500px">
+                db4o OSGI tests</td>
+        </tr>
+        <tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-taj.jar</td>
+            <td style="width: 500px">
+                db4o instrumentation classes for Transparent Activation
+            </td>
+        </tr>
+        <tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-tools.jar</td>
+            <td style="width: 500px">
+                db4o tools user interface, contains db4o enhancer and Ant tasks
+            </td>
+        </tr>
+    </table>
+    <br />
+    <br />
+    <h2>
+        USING DB4O LIBRARIES
+    </h2>
+    <p>
+    	To use db4o you need at least db4o-8.0.276.16149-core-java5.jar.
+	</p>
+	<p>
+        For using db4o in client/server mode you will additionally need the respective
+        client/server library, i.e. db4o-8.0.276.16149-cs-java5.jar. 
+        You can also use the nodependency db4o library (db4o-8.0.276.16149-all-java5.jar).
+	</p>
+	<p>
+	db4o optional components (BigMath- and UUID-support, file statistics, etc) can be obtained from
+	db4o optional jars (i.e. db4o-8.0.276.16149-optional-java5.jar. 
+	These components are also included in the nodependency jar (db4o-8.0.276.16149-all-java5.jar).
+	</p>
+	<p>
+        For Native Query optimization you will additionally need:<br>
+        bloat-1.0.jar<br>
+        db4o-8.0.276.16149-instrumentation.jar<br>
+        db4o-8.0.276.16149-nqopt.jar<br>
+        db4o-8.0.276.16149-tools.jar<br>
+        These components are also included in the nodependency jar (db4o-8.0.276.16149-all-java5.jar).
+	</p>
+	<p>
+		For Transparent Activation optimization you will additionally need:<br>
+        bloat-1.0.jar<br>
+        db4o-8.0.276.16149-instrumentation.jar<br>
+        db4o-8.0.276.16149-taj.jar<br>
+        db4o-8.0.276.16149-tools.jar<br>
+        These components are also included in the nodependency jar (db4o-8.0.276.16149-all-java5.jar).
+	</p>      
+</body>
+</html>
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diff --git a/libs/lib/3rdpartylibs.html b/libs/lib/3rdpartylibs.html
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+++ b/libs/lib/3rdpartylibs.html
@@ -0,0 +1,40 @@
+<html>
+<head>
+<title>3rd Party</title>
+<Style>
+BODY, P, TD { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt; color: #666666 }
+H2,H3,H4,H5 { color: black; font-weight: bold; }
+H2 { font-size: 13pt; }
+H3 { font-size: 12pt; }
+H4 { font-size: 10pt; color: black; }
+
+</style>
+</head>
+<body bgcolor="#FFFFFF" color=#000000>
+    <p>
+        This distribution comes with the 3rd party libraries listed below.
+        <br />
+        These are not needed for plain db4o operation, but only for specific use cases involving
+        native query optimization.
+    </p>
+    <p>
+        bloat-1.0.jar
+        <br />
+        http://www.cs.purdue.edu/s3/projects/bloat/
+        <br />
+        Needed for bytecode analysis during native query optimization. Must be on the runtime
+        classpath for optimization at load or query execution time, must be present during
+        the Ant build for class file optimization.
+    </p>
+    <p>
+        ant.jar
+        <br />
+        http://ant.apache.org/
+        <br />
+        Needed for the native query optimization Ant task.
+    </p>
+    <p>
+        Please refer to the license files for these libraries as well as to the Licensing
+        and Native Query Optimization chapter in the tutorial for further information.</p>
+</body>
+</html>
\ No newline at end of file
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diff --git a/libs/lib/ant.license.html b/libs/lib/ant.license.html
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--- /dev/null
+++ b/libs/lib/ant.license.html
@@ -0,0 +1,54 @@
+<html>
+<head>
+<title>The Apache Software License</title>
+<Style>
+BODY, P, TD { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt; color: #666666 }
+H2,H3,H4,H5 { color: black; font-weight: bold; }
+H2 { font-size: 13pt; }
+H3 { font-size: 12pt; }
+H4 { font-size: 10pt; color: black; }
+
+</style>
+</head>
+<body bgcolor="#FFFFFF" color=#000000>
+    The Apache Software License, Version 1.1<br />
+    <br />
+    Copyright (C) 2000-2002 The Apache Software Foundation. All rights reserved.<br />
+    <br />
+    Redistribution and use in source and binary forms, with or without modification,
+    are permitted provided that the following conditions are met:&nbsp;<br />
+    <ol>
+        <li>Redistributions of source code must retain the above copyright notice, this list
+            of conditions and the following disclaimer.&nbsp;</li>
+        <li>Redistributions in binary form must reproduce the above copyright notice, this list
+            of conditions and the following disclaimer in the documentation and/or other materials
+            provided with the distribution.&nbsp;</li>
+        <li>The end-user documentation included with the redistribution, if any, must include
+            the following acknowledgment: "This product includes software developed by the Apache
+            Software Foundation (<a href="http://www.apache.org/">http://www.apache.org/</a>)."
+            Alternately, this acknowledgment may appear in the software itself, if and wherever
+            such third-party acknowledgments normally appear.&nbsp;</li>
+        <li>The names "Ant" and "Apache Software Foundation" must not be used to endorse or
+            promote products derived from this software without prior written permission. For
+            written permission, please contact apache@apache.org. </li>
+        <li>Products derived from this software may not be called "Apache", nor may "Apache"
+            appear in their name, without prior written permission of the Apache Software Foundation.
+        </li>
+    </ol>
+    <p>
+        THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
+        BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+        PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION
+        OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+        OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+        GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+        CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+        TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+        SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+    </p>
+    <p>
+        This software consists of voluntary contributions made by many individuals on behalf
+        of the Apache Software Foundation. For more information on the Apache Software Foundation,
+        please see &lt;<a href="http://www.apache.org/">http://www.apache.org/</a>&gt;</p>
+</body>
+</html>
\ No newline at end of file
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diff --git a/libs/lib/bloat.license.html b/libs/lib/bloat.license.html
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+++ b/libs/lib/bloat.license.html
@@ -0,0 +1,384 @@
+<html>
+<head>
+<title>GNU GENERAL PUBLIC LICENSE</title>
+<Style>
+BODY, P, TD { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt; color: #666666 }
+H2,H3,H4,H5 { color: black; font-weight: bold; }
+H2 { font-size: 13pt; }
+H3 { font-size: 12pt; }
+H4 { font-size: 10pt; color: black; }
+</style>
+</head>
+<body bgcolor="#FFFFFF" color=#000000 style="text-align: justify">
+    <h2>
+        GNU GENERAL PUBLIC LICENSE
+        <br />
+    </h2>
+    Version 2, June 1991
+    <br />
+    Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+    <br />
+    59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+    <br />
+    Everyone is permitted to copy and distribute verbatim copies of this license document,
+    but changing it is not allowed.
+    <br />
+    <br />
+    <p>
+        Preamble</p>
+    <p>
+        The licenses for most software are designed to take away your freedom to share and
+        change it. By contrast, the GNU General Public License is intended to guarantee
+        your freedom to share and change free software--to make sure the software is free
+        for all its users. This General Public License applies to most of the Free Software
+        Foundation's software and to any other program whose authors commit to using it.
+        (Some other Free Software Foundation software is covered by the GNU Library General
+        Public License instead.) You can apply it to your programs, too.
+        <br />
+    </p>
+    <p>
+        When we speak of free software, we are referring to freedom, not price. Our General
+        Public Licenses are designed to make sure that you have the freedom to distribute
+        copies of free software (and charge for this service if you wish), that you receive
+        source code or can get it if you want it, that you can change the software or use
+        pieces of it in new free programs; and that you know you can do these things.
+        <br />
+    </p>
+    <p>
+        To protect your rights, we need to make restrictions that forbid anyone to deny
+        you these rights or to ask you to surrender the rights. These restrictions translate
+        to certain responsibilities for you if you distribute copies of the software, or
+        if you modify it.
+        <br />
+        <br />
+        For example, if you distribute copies of such a program, whether gratis or for a
+        fee, you must give the recipients all the rights that you have. You must make sure
+        that they, too, receive or can get the source code. And you must show them these
+        terms so they know their rights.
+        <br />
+        <br />
+        We protect your rights with two steps: (1) copyright the software, and (2) offer
+        you this license which gives you legal permission to copy, distribute and/or modify
+        the software.
+        <br />
+        <br />
+        Also, for each author's protection and ours, we want to make certain that everyone
+        understands that there is no warranty for this free software. If the software is
+        modified by someone else and passed on, we want its recipients to know that what
+        they have is not the original, so that any problems introduced by others will not
+        reflect on the original authors' reputations.
+        <br />
+        <br />
+        Finally, any free program is threatened constantly by software patents. We wish
+        to avoid the danger that redistributors of a free program will individually obtain
+        patent licenses, in effect making the program proprietary. To prevent this, we have
+        made it clear that any patent must be licensed for everyone's free use or not licensed
+        at all.
+        <br />
+        <br />
+        The precise terms and conditions for copying, distribution and modification follow.
+        <br />
+    </p>
+    <p>
+        GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+        <br />
+        <br />
+        0. This License applies to any program or other work which contains a notice placed
+        by the copyright holder saying it may be distributed under the terms of this General
+        Public License. The "Program", below, refers to any such program or work, and a
+        "work based on the Program" means either the Program or any derivative work under
+        copyright law: that is to say, a work containing the Program or a portion of it,
+        either verbatim or with modifications and/or translated into another language. (Hereinafter,
+        translation is included without limitation in the term "modification".) Each licensee
+        is addressed as "you".
+        <br />
+        <br />
+        Activities other than copying, distribution and modification are not covered by
+        this License; they are outside its scope. The act of running the Program is not
+        restricted, and the output from the Program is covered only if its contents constitute
+        a work based on the Program (independent of having been made by running the Program).
+        Whether that is true depends on what the Program does.
+        <br />
+        <br />
+        1. You may copy and distribute verbatim copies of the Program's source code as you
+        receive it, in any medium, provided that you conspicuously and appropriately publish
+        on each copy an appropriate copyright notice and disclaimer of warranty; keep intact
+        all the notices that refer to this License and to the absence of any warranty; and
+        give any other recipients of the Program a copy of this License along with the Program.
+        <br />
+        <br />
+        You may charge a fee for the physical act of transferring a copy, and you may at
+        your option offer warranty protection in exchange for a fee.
+        <br />
+        <br />
+        2. You may modify your copy or copies of the Program or any portion of it, thus
+        forming a work based on the Program, and copy and distribute such modifications
+        or work under the terms of Section 1 above, provided that you also meet all of these
+        conditions:
+        <br />
+        a) You must cause the modified files to carry prominent notices stating that you
+        changed the files and the date of any change.
+        <br />
+        b) You must cause any work that you distribute or publish, that in whole or in part
+        contains or is derived from the Program or any part thereof, to be licensed as a
+        whole at no charge to all third parties under the terms of this License.
+        <br />
+        c) If the modified program normally reads commands interactively when run, you must
+        cause it, when started running for such interactive use in the most ordinary way,
+        to print or display an announcement including an appropriate copyright notice and
+        a notice that there is no warranty (or else, saying that you provide a warranty)
+        and that users may redistribute the program under these conditions, and telling
+        the user how to view a copy of this License. (Exception: if the Program itself is
+        interactive but does not normally print such an announcement, your work based on
+        the Program is not required to print an announcement.)
+        <br />
+        <br />
+        These requirements apply to the modified work as a whole. If identifiable sections
+        of that work are not derived from the Program, and can be reasonably considered
+        independent and separate works in themselves, then this License, and its terms,
+        do not apply to those sections when you distribute them as separate works. But when
+        you distribute the same sections as part of a whole which is a work based on the
+        Program, the distribution of the whole must be on the terms of this License, whose
+        permissions for other licensees extend to the entire whole, and thus to each and
+        every part regardless of who wrote it.
+        <br />
+        <br />
+        Thus, it is not the intent of this section to claim rights or contest your rights
+        to work written entirely by you; rather, the intent is to exercise the right to
+        control the distribution of derivative or collective works based on the Program.
+        <br />
+        <br />
+        In addition, mere aggregation of another work not based on the Program with the
+        Program (or with a work based on the Program) on a volume of a storage or distribution
+        medium does not bring the other work under the scope of this License.
+        <br />
+        <br />
+        3. You may copy and distribute the Program (or a work based on it, under Section
+        2) in object code or executable form under the terms of Sections 1 and 2 above provided
+        that you also do one of the following:
+        <br />
+        a) Accompany it with the complete corresponding machine-readable source code, which
+        must be distributed under the terms of Sections 1 and 2 above on a medium customarily
+        used for software interchange; or,
+        <br />
+        b) Accompany it with a written offer, valid for at least three years, to give any
+        third party, for a charge no more than your cost of physically performing source
+        distribution, a complete machine-readable copy of the corresponding source code,
+        to be distributed under the terms of Sections 1 and 2 above on a medium customarily
+        used for software interchange; or,
+        <br />
+        c) Accompany it with the information you received as to the offer to distribute
+        corresponding source code. (This alternative is allowed only for noncommercial distribution
+        and only if you received the program in object code or executable form with such
+        an offer, in accord with Subsection b above.)
+        <br />
+        <br />
+        The source code for a work means the preferred form of the work for making modifications
+        to it. For an executable work, complete source code means all the source code for
+        all modules it contains, plus any associated interface definition files, plus the
+        scripts used to control compilation and installation of the executable. However,
+        as a special exception, the source code distributed need not include anything that
+        is normally distributed (in either source or binary form) with the major components
+        (compiler, kernel, and so on) of the operating system on which the executable runs,
+        unless that component itself accompanies the executable.
+        <br />
+        <br />
+        If distribution of executable or object code is made by offering access to copy
+        from a designated place, then offering equivalent access to copy the source code
+        from the same place counts as distribution of the source code, even though third
+        parties are not compelled to copy the source along with the object code.
+        <br />
+        <br />
+        4. You may not copy, modify, sublicense, or distribute the Program except as expressly
+        provided under this License. Any attempt otherwise to copy, modify, sublicense or
+        distribute the Program is void, and will automatically terminate your rights under
+        this License. However, parties who have received copies, or rights, from you under
+        this License will not have their licenses terminated so long as such parties remain
+        in full compliance.
+        <br />
+        <br />
+        5. You are not required to accept this License, since you have not signed it. However,
+        nothing else grants you permission to modify or distribute the Program or its derivative
+        works. These actions are prohibited by law if you do not accept this License. Therefore,
+        by modifying or distributing the Program (or any work based on the Program), you
+        indicate your acceptance of this License to do so, and all its terms and conditions
+        for copying, distributing or modifying the Program or works based on it.
+        <br />
+        <br />
+        6. Each time you redistribute the Program (or any work based on the Program), the
+        recipient automatically receives a license from the original licensor to copy, distribute
+        or modify the Program subject to these terms and conditions. You may not impose
+        any further restrictions on the recipients' exercise of the rights granted herein.
+        You are not responsible for enforcing compliance by third parties to this License.
+        <br />
+        <br />
+        7. If, as a consequence of a court judgment or allegation of patent infringement
+        or for any other reason (not limited to patent issues), conditions are imposed on
+        you (whether by court order, agreement or otherwise) that contradict the conditions
+        of this License, they do not excuse you from the conditions of this License. If
+        you cannot distribute so as to satisfy simultaneously your obligations under this
+        License and any other pertinent obligations, then as a consequence you may not distribute
+        the Program at all. For example, if a patent license would not permit royalty-free
+        redistribution of the Program by all those who receive copies directly or indirectly
+        through you, then the only way you could satisfy both it and this License would
+        be to refrain entirely from distribution of the Program.
+        <br />
+        <br />
+        If any portion of this section is held invalid or unenforceable under any particular
+        circumstance, the balance of the section is intended to apply and the section as
+        a whole is intended to apply in other circumstances.
+        <br />
+        <br />
+        It is not the purpose of this section to induce you to infringe any patents or other
+        property right claims or to contest validity of any such claims; this section has
+        the sole purpose of protecting the integrity of the free software distribution system,
+        which is implemented by public license practices. Many people have made generous
+        contributions to the wide range of software distributed through that system in reliance
+        on consistent application of that system; it is up to the author/donor to decide
+        if he or she is willing to distribute software through any other system and a licensee
+        cannot impose that choice.
+        <br />
+        <br />
+        This section is intended to make thoroughly clear what is believed to be a consequence
+        of the rest of this License.
+        <br />
+        <br />
+        8. If the distribution and/or use of the Program is restricted in certain countries
+        either by patents or by copyrighted interfaces, the original copyright holder who
+        places the Program under this License may add an explicit geographical distribution
+        limitation excluding those countries, so that distribution is permitted only in
+        or among countries not thus excluded. In such case, this License incorporates the
+        limitation as if written in the body of this License.
+        <br />
+        <br />
+        9. The Free Software Foundation may publish revised and/or new versions of the General
+        Public License from time to time. Such new versions will be similar in spirit to
+        the present version, but may differ in detail to address new problems or concerns.
+        <br />
+        <br />
+        Each version is given a distinguishing version number. If the Program specifies
+        a version number of this License which applies to it and "any later version", you
+        have the option of following the terms and conditions either of that version or
+        of any later version published by the Free Software Foundation. If the Program does
+        not specify a version number of this License, you may choose any version ever published
+        by the Free Software Foundation.
+        <br />
+        <br />
+        10. If you wish to incorporate parts of the Program into other free programs whose
+        distribution conditions are different, write to the author to ask for permission.
+        For software which is copyrighted by the Free Software Foundation, write to the
+        Free Software Foundation; we sometimes make exceptions for this. Our decision will
+        be guided by the two goals of preserving the free status of all derivatives of our
+        free software and of promoting the sharing and reuse of software generally.
+        <br />
+        <br />
+        NO WARRANTY
+        <br />
+        <br />
+        11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE
+        PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED
+        IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
+        WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED
+        TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+        THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD
+        THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR
+        OR CORRECTION.
+        <br />
+        <br />
+        12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
+        COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM
+        AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
+        INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+        PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE
+        OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE
+        WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
+        THE POSSIBILITY OF SUCH DAMAGES.
+        <br />
+        <br />
+        END OF TERMS AND CONDITIONS
+        <br />
+        <br />
+        How to Apply These Terms to Your New Programs
+        <br />
+        <br />
+        If you develop a new program, and you want it to be of the greatest possible use
+        to the public, the best way to achieve this is to make it free software which everyone
+        can redistribute and change under these terms.
+        <br />
+        <br />
+        To do so, attach the following notices to the program. It is safest to attach them
+        to the start of each source file to most effectively convey the exclusion of warranty;
+        and each file should have at least the "copyright" line and a pointer to where the
+        full notice is found.&nbsp;<br />
+        <br /></p>
+       <blockquote><p>
+        &lt;one line to give the program's name and a brief idea of what it does.&gt;<br/>
+    
+        Copyright (C) &lt;year&gt; &lt;name of author&gt;
+    </p>
+       
+<p>
+        This program is free software; you can redistribute it and/or modify it under the
+        terms of the GNU General Public License as published by the Free Software Foundation;
+        either version 2 of the License, or (at your option) any later version.
+    </p>
+   <p> 
+        This program
+        is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+        even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+        See the GNU General Public License for more details. 
+    </p>
+   <p>
+        You should have received a
+        copy of the GNU General Public License along with this program; if not, write to
+        the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+        USA </p>
+    </blockquote>
+    <p>
+        Also add information on how to contact you by electronic and paper mail. 
+    </p>
+    <p>
+        If
+        the program is interactive, make it output a short notice like this when it starts
+        in an interactive mode: 
+    </p>
+    <blockquote>
+        Gnomovision version 69, Copyright (C) year name of author
+        <br />
+        Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.<br />
+        This is
+        free software, and you are welcome to redistribute it under certain conditions;
+        type `show c' for details. 
+    </blockquote>
+    <p>
+        The hypothetical commands `show w' and `show c' should
+        show the appropriate parts of the General Public License. Of course, the commands
+        you use may be called something other than `show w' and `show c'; they could even
+        be mouse-clicks or menu items
+        -whatever suits your program. 
+    </p>
+    <p>
+        You should also get
+        your employer (if you work as a programmer) or your school, if any, to sign a "copyright
+        disclaimer" for the program, if necessary. Here is a sample; alter the names: 
+    </p>
+    
+<blockquote>    
+    <p>
+        Yoyodyne,
+        Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which
+        makes passes at compilers) written by James Hacker.</p>
+    <p>
+        &lt;signature of Ty Coon&gt;,
+        1 April 1989 <br />Ty Coon, President of Vice 
+    </p>
+   </blockquote> 
+    <p>
+        This General Public License does not permit
+        incorporating your program into proprietary programs. If your program is a subroutine
+        library, you may consider it more useful to permit linking proprietary applications
+        with the library. If this is what you want to do, use the GNU Library General Public
+        License instead of this License.
+    </p>
+</body>
+</html>
\ No newline at end of file
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diff --git a/libs/lib/db4o-8.0.276.16149-taj-java5.jar b/libs/lib/db4o-8.0.276.16149-taj-java5.jar
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diff --git a/libs/lib/db4o-8.0.276.16149-tools-java5.jar b/libs/lib/db4o-8.0.276.16149-tools-java5.jar
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diff --git a/libs/lib/readme.html b/libs/lib/readme.html
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--- /dev/null
+++ b/libs/lib/readme.html
@@ -0,0 +1,144 @@
+<html>
+<head>
+<title>Readme</title>
+<Style>
+BODY, P, TD { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt; color: #666666 }
+H2,H3,H4,H5 { color: black; font-weight: bold; }
+H2 { font-size: 13pt; }
+H3 { font-size: 12pt; }
+H4 { font-size: 10pt; color: black; }
+</style>
+</head>
+<body bgcolor="#FFFFFF" color=#000000>
+    This folder contains library files, which you can use in your projects.
+    <br />
+    <br />
+    <table>
+        <tr>
+            <td style="width: 300px">
+                ant.jar</td>
+            <td style="width: 500px">
+                ant build tool, used to build db4o sources (<a href="http://ant.apache.org/">http://ant.apache.org/</a>)</td>
+        </tr>
+        <tr>
+            <td style="width: 380px">
+                bloat-1.0.jar</td>
+            <td style="width: 500px">
+                bytecode optimization library, used to optmize Native Queries and Transparent Activation</td>
+        </tr>
+    	<tr>
+        	<td style="width: 380px">
+            	db4o-8.0.276.16149-all-java5.jar</td>
+        	<td style="width: 500px">
+            	no-dependency jar with all db4o binaries for JDK 5 and JDK 6</td>
+    	</tr>
+        <tr>
+           <td style="width: 380px">
+               db4o-8.0.276.16149-bench.jar</td>
+           <td style="width: 500px">
+               IO benchmark library
+           </td>
+		</tr>
+    <tr>
+        <td style="width: 380px">
+            db4o-8.0.276.16149-core-java5.jar</td>
+        <td style="width: 500px">
+            db4o database engine core for JDK 5 and JDK 6</td>
+    </tr>
+        <tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-cs-java5.jar</td>
+            <td style="width: 500px">
+                db4o client/server components for JDK 5 and JDK 6</td>
+        </tr>
+        <tr>
+          <td style="width: 380px">
+              db4o-8.0.276.16149-db4ounit-java1.5.jar
+          </td>
+          <td style="width: 500px">
+             testing framework for db4o needs for JDK 5 and JDK 6
+          </td>
+		</tr>
+        <tr>
+           <td style="width: 380px">
+               db4o-8.0.276.16149-instrumentation.jar</td>
+           <td style="width: 500px">
+               Instrumentation layer on top of bloat
+           </td>
+		</tr>
+		<tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-nqopt.jar</td>
+            <td style="width: 500px">
+                Native Query optimization library. This library should be available in the classpath
+                for NQ optimization</td>
+        </tr>
+        <tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-optional-java5.jar</td>
+            <td style="width: 500px">
+                db4o optional components for JDK 5 and JDK 6</td>
+        </tr>
+		<tr>
+            <td style="width: 380px">
+               db4o-8.0.276.16149-osgi.jar</td>
+           <td style="width: 500px">
+               db4o for OSGi. See <a href="../doc/osgi/index.html">OSGi API documentation</a>.</td>
+		</tr>
+        <tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-osgi-test.jar</td>
+            <td style="width: 500px">
+                db4o OSGI tests</td>
+        </tr>
+        <tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-taj.jar</td>
+            <td style="width: 500px">
+                db4o instrumentation classes for Transparent Activation
+            </td>
+        </tr>
+        <tr>
+            <td style="width: 380px">
+                db4o-8.0.276.16149-tools.jar</td>
+            <td style="width: 500px">
+                db4o tools user interface, contains db4o enhancer and Ant tasks
+            </td>
+        </tr>
+    </table>
+    <br />
+    <br />
+    <h2>
+        USING DB4O LIBRARIES
+    </h2>
+    <p>
+    	To use db4o you need at least db4o-8.0.276.16149-core-java5.jar.
+	</p>
+	<p>
+        For using db4o in client/server mode you will additionally need the respective
+        client/server library, i.e. db4o-8.0.276.16149-cs-java5.jar. 
+        You can also use the nodependency db4o library (db4o-8.0.276.16149-all-java5.jar).
+	</p>
+	<p>
+	db4o optional components (BigMath- and UUID-support, file statistics, etc) can be obtained from
+	db4o optional jars (i.e. db4o-8.0.276.16149-optional-java5.jar. 
+	These components are also included in the nodependency jar (db4o-8.0.276.16149-all-java5.jar).
+	</p>
+	<p>
+        For Native Query optimization you will additionally need:<br>
+        bloat-1.0.jar<br>
+        db4o-8.0.276.16149-instrumentation.jar<br>
+        db4o-8.0.276.16149-nqopt.jar<br>
+        db4o-8.0.276.16149-tools.jar<br>
+        These components are also included in the nodependency jar (db4o-8.0.276.16149-all-java5.jar).
+	</p>
+	<p>
+		For Transparent Activation optimization you will additionally need:<br>
+        bloat-1.0.jar<br>
+        db4o-8.0.276.16149-instrumentation.jar<br>
+        db4o-8.0.276.16149-taj.jar<br>
+        db4o-8.0.276.16149-tools.jar<br>
+        These components are also included in the nodependency jar (db4o-8.0.276.16149-all-java5.jar).
+	</p>      
+</body>
+</html>
\ No newline at end of file
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diff --git a/out/production/Lernmaschine/LearningMachine/StopServer.class b/out/production/Lernmaschine/LearningMachine/StopServer.class
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diff --git a/out/production/Lernmaschine/META-INF/Lernmaschine.kotlin_module b/out/production/Lernmaschine/META-INF/Lernmaschine.kotlin_module
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diff --git a/out/production/Lernmaschine/META-INF/MANIFEST.MF b/out/production/Lernmaschine/META-INF/MANIFEST.MF
new file mode 100755
index 0000000..ce31649
--- /dev/null
+++ b/out/production/Lernmaschine/META-INF/MANIFEST.MF
@@ -0,0 +1,4 @@
+Manifest-Version: 1.0
+Main-Class: LearningMachine.LearningMachine
+
+
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diff --git a/src/LearningMachine/LearningMachine.java b/src/LearningMachine/LearningMachine.java
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index 0000000..238a8f4
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+++ b/src/LearningMachine/LearningMachine.java
@@ -0,0 +1,28 @@
+package LearningMachine;
+
+import storage.*;
+import ui.SwingTableView;
+import ui.UserInterface;
+
+/**
+ * the main class of the application
+ */
+public class LearningMachine {
+
+    public static String server = ""; //information about the adress of the data server
+
+    /**
+     * the main method that is launched first when starting the application
+     * @param args external arguments given before code execution
+     */
+    public static void main(String[] args) {
+        StorageInterface db = null;
+        UserInterface ui = null;
+        db = new Database_db4o();
+        ui = new SwingTableView(db);
+        if(ui != null)
+            ui.start();
+    }
+
+}
+
diff --git a/src/LearningMachine/ServerSetup.java b/src/LearningMachine/ServerSetup.java
new file mode 100755
index 0000000..2e78a0a
--- /dev/null
+++ b/src/LearningMachine/ServerSetup.java
@@ -0,0 +1,30 @@
+package LearningMachine;
+
+public interface ServerSetup {
+
+    /**
+     * the host to be used.
+     * If you want to run the client server examples on two computers,
+     * enter the computer name of the one that you want to use as server.
+     */
+    public String   HOST = "localhost";
+    /**
+     * the database file to be used by the server.
+     */
+    public String   FILE = "LearningMachine.db4o";
+
+    /**
+     * the port to be used by the server.
+     */
+    public int    PORT = 0xdb40;
+
+    /**
+     * the user name for access control.
+     */
+    public String   USER = "admin";
+
+    /**
+     * the pasword for access control.
+     */
+    public String   PASS = "admin";
+}
\ No newline at end of file
diff --git a/src/LearningMachine/StartServer.java b/src/LearningMachine/StartServer.java
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index 0000000..bf7b124
--- /dev/null
+++ b/src/LearningMachine/StartServer.java
@@ -0,0 +1,100 @@
+package LearningMachine;
+
+import com.db4o.ObjectContainer;
+import com.db4o.ObjectServer;
+import com.db4o.cs.Db4oClientServer;
+import com.db4o.cs.config.ServerConfiguration;
+import com.db4o.messaging.MessageContext;
+import com.db4o.messaging.MessageRecipient;
+
+/** *//**
+ * starts a db4o server with the settings from {@link ServerSetup}. <br>
+ * <br>
+ * This is a typical setup for a long running server. <br>
+ * <br>
+ * The Server may be stopped from a remote location by running StopServer. The
+ * StartServer instance is used as a MessageRecipient and reacts to receiving an
+ * instance of a StopServer object. <br>
+ * <br>
+ * Note that all user classes need to be present on the server side and that all
+ * possible Db4oEmbedded.configure() calls to alter the db4o configuration need
+ * to be executed on the client and on the server.
+ */
+public class StartServer implements ServerSetup, MessageRecipient  {
+
+    /** *//**
+     * setting the value to true denotes that the server should be closed
+     */
+    private boolean stop = false;
+
+    /** *//**
+     * starts a db4o server using the configuration from
+     * {@link ServerSetup}.
+     */
+    public static void main(String[] arguments)  {
+        new StartServer().runServer();
+    }
+
+    // end main
+
+    /** *//**
+     * opens the ObjectServer, and waits forever until close() is called or a
+     * StopServer message is being received.
+     */
+    public void runServer()  {
+        synchronized (this)  {
+            // Using the messaging functionality to redirect all
+            // messages to this.processMessage
+            ServerConfiguration config = Db4oClientServer.newServerConfiguration();
+            config.networking().messageRecipient(this);
+
+            ObjectServer db4oServer = Db4oClientServer.openServer(
+                    config, FILE, PORT);
+            db4oServer.grantAccess(USER, PASS);
+
+
+            // to identify the thread in a debugger
+            Thread.currentThread().setName(this.getClass().getName());
+
+            // We only need low priority since the db4o server has
+            // it's own thread.
+            Thread.currentThread().setPriority(Thread.MIN_PRIORITY);
+            try  {
+                if (!stop)  {
+                    // wait forever for notify() from close()
+                    this.wait(Long.MAX_VALUE);
+                }
+            } catch (Exception e)  {
+                e.printStackTrace();
+            }
+            db4oServer.close();
+        }
+    }
+
+    // end runServer
+
+    /** *//**
+     * messaging callback
+     *
+     * @see com.db4o.messaging.MessageRecipient#processMessage(ObjectContainer,
+     *      Object)
+     */
+    public void processMessage(MessageContext context, Object message)  {
+        if (message instanceof StopServer)  {
+            close();
+        }
+    }
+
+    // end processMessage
+
+    /** *//**
+     * closes this server.
+     */
+    public void close()  {
+        synchronized (this)  {
+            stop = true;
+            this.notify();
+        }
+    }
+    // end close
+}
diff --git a/src/LearningMachine/StopServer.java b/src/LearningMachine/StopServer.java
new file mode 100755
index 0000000..facc193
--- /dev/null
+++ b/src/LearningMachine/StopServer.java
@@ -0,0 +1,47 @@
+package LearningMachine;
+
+import com.db4o.*;
+import com.db4o.cs.Db4oClientServer;
+import com.db4o.messaging.*;
+
+/** *//**
+ * stops the db4o Server started with {@link StartServer}. <br>
+ * <br>
+ * This is done by opening a client connection to the server and by sending a
+ * StopServer object as a message. {@link StartServer} will react in it's
+ * processMessage method.
+ */
+public class StopServer implements ServerSetup  {
+
+    /** *//**
+     * stops a db4o Server started with StartServer.
+     *
+     * @throws Exception
+     */
+    public static void main(String[] args)  {
+        ObjectContainer objectContainer = null;
+        try  {
+
+            // connect to the server
+            objectContainer = Db4oClientServer.openClient(Db4oClientServer
+                    .newClientConfiguration(), HOST, PORT, USER, PASS);
+
+        } catch (Exception e)  {
+            e.printStackTrace();
+        }
+
+        if (objectContainer != null)  {
+
+            // get the messageSender for the ObjectContainer
+            MessageSender messageSender = objectContainer.ext().configure()
+                    .clientServer().getMessageSender();
+
+            // send an instance of a StopServer object
+            messageSender.send(new StopServer());
+
+            // close the ObjectContainer
+            objectContainer.close();
+        }
+    }
+    // end main
+}
diff --git a/src/META-INF/MANIFEST.MF b/src/META-INF/MANIFEST.MF
new file mode 100755
index 0000000..ce31649
--- /dev/null
+++ b/src/META-INF/MANIFEST.MF
@@ -0,0 +1,4 @@
+Manifest-Version: 1.0
+Main-Class: LearningMachine.LearningMachine
+
+
diff --git a/src/storage/Category.java b/src/storage/Category.java
new file mode 100755
index 0000000..b65c870
--- /dev/null
+++ b/src/storage/Category.java
@@ -0,0 +1,11 @@
+package storage;
+
+/**
+ * the different categories for the documents saved by the learning machine
+ */
+public enum Category {
+    SCRIPT,
+    EXAM,
+    PRACTICE_SHEET,
+    ELABORATION
+}
diff --git a/src/storage/Database_db4o.java b/src/storage/Database_db4o.java
new file mode 100755
index 0000000..6668aea
--- /dev/null
+++ b/src/storage/Database_db4o.java
@@ -0,0 +1,369 @@
+package storage;
+
+import LearningMachine.LearningMachine;
+import com.db4o.Db4oEmbedded;
+import com.db4o.ObjectContainer;
+import com.db4o.ObjectSet;
+import com.db4o.config.EmbeddedConfiguration;
+import com.db4o.cs.Db4oClientServer;
+import com.db4o.cs.config.ClientConfiguration;
+import com.db4o.reflect.jdk.JdkReflector;
+
+import java.util.TreeMap;
+
+/**
+ * the implementation for the usage of a db4o database
+ */
+public class Database_db4o implements StorageInterface {
+    private ObjectContainer oc; //the object container saved in the database
+    private String filename = "db.db4o";    //the db4o file name/ location
+    protected TreeMap<String, Lecture> lectures = new TreeMap();    //a mirror of the lectures stored in the database
+
+    //region general database operations
+    /**
+     * enables the data exchange with the database
+     * @throws Exception in case there is a problem while enabling the database connection
+     */
+    public void openDB() throws Exception{
+        //run local without a server
+        EmbeddedConfiguration config = Db4oEmbedded.newConfiguration();
+        config.common().reflectWith(new JdkReflector(Thread.currentThread().getContextClassLoader()));
+        config.common().activationDepth(14);
+        config.common().updateDepth(14);
+        oc = Db4oEmbedded.openFile(config, filename);
+    }
+
+    /**
+     * updates the mirror from the database
+     * @throws Exception in case of a problem with the connection to the database
+     */
+    @Override
+    public void readData() throws Exception {
+        openDB();
+        try {
+            for (Lecture l : oc.query(Lecture.class)){
+                lectures.put(l.getName(),l);
+            }
+        }
+        finally {
+            oc.close();
+        }
+    }
+
+    /**
+     * writes the mirror to the database
+     * @throws Exception in case of a problem with the database connection
+     */
+    @Override
+    public void saveData() throws Exception {
+        openDB();
+        try {
+            oc.store(lectures);
+        }
+        finally {
+            oc.close();
+        }
+    }
+    //endregion
+
+    //region lecture operations
+    /**
+     * @return the lectures stored in the database
+     */
+    @Override
+    public TreeMap<String, Lecture> getLectures() {
+        return lectures;
+    }
+
+    /**
+     * @param name the name of a specific lecture
+     * @return the requested lecture
+     */
+    @Override
+    public Lecture getLecture(String name) {
+        return lectures.get(name);
+    }
+
+    /**
+     * @param name the name of a specific lecture
+     * @return a boolean whether or not the requested lecture exists in the database
+     */
+    @Override
+    public boolean lectureExists(String name) {
+        return lectures.containsKey(name);
+    }
+
+    /**
+     * @return the total number of lectures saved in the database
+     */
+    @Override
+    public int getLectureAmount() {
+        return lectures.size();
+    }
+
+    /**
+     * adds a lecture to the database
+     * @param lecture the new lecture
+     * @return the added lecture
+     * @throws Exception in case of a database problem
+     */
+    @Override
+    public Lecture addLecture(Lecture lecture) throws Exception {
+        openDB();
+        try {
+            Lecture l = lectures.put(lecture.getName(),lecture);
+            oc.store(lecture);
+            return l;
+        }
+        finally {
+            oc.close();
+        }
+    }
+
+    /**
+     * deletes a lecture from the database
+     * @param lecture the lecture that is to be deleted
+     * @return the deleted lecture
+     * @throws Exception in case of a database problem
+     */
+    @Override
+    public Lecture deleteLecture(Lecture lecture) throws Exception {
+        openDB();
+        try {
+            //read the lecture from the database
+            ObjectSet result = oc.queryByExample(lecture);
+            //remove lecture from database and mirror
+            lectures.remove(lecture.getName());
+            Lecture found = (Lecture) result.next();
+            oc.delete(found);
+            return found;
+        }
+        finally {
+            oc.close();
+        }
+    }
+    //endregion
+
+    //region elaboration operations
+    /**
+     * adds a elaboration to the database
+     * @param lecture the lecture the elaboration belongs to
+     * @param learningDocument the parent document of the elaboration
+     * @param elaboration the elaboration that should be saved
+     * @return the elaboration that has been saved to the database
+     * @throws Exception in case of a database problem
+     */
+    @Override
+    public LearningDocument addElaboration(Lecture lecture, LearningDocument learningDocument, LearningDocument elaboration) throws Exception {
+        openDB();
+        try{
+            //read the parent document and lecture from the database
+            Lecture l = (Lecture) oc.queryByExample(lecture).next();
+            LearningDocument ld = l.getLearningDocument(learningDocument.getName());
+            //modify the database data and the mirror
+            LearningDocument e = ld.addElaboration(elaboration);
+            learningDocument.addElaboration(elaboration);
+            //save the modified lecture to the database
+            oc.store(l);
+            return e;
+        }
+        finally {
+            oc.close();
+        }
+    }
+
+    /**
+     * deletes a elaboration
+     * @param lecture the lecture the elaboration belongs to
+     * @param learningDocument the parent document of the elaboration
+     * @param elaboration the elaboration that is to be deleted
+     * @return the delted elaboration
+     * @throws Exception in case a database problem occurs
+     */
+    @Override
+    public LearningDocument deleteElaboration(Lecture lecture, LearningDocument learningDocument,
+                                              LearningDocument elaboration) throws Exception {
+        openDB();
+        try{
+            //read the parent document and the lecture from the db
+            Lecture l = (Lecture) oc.queryByExample(lecture).next();
+            LearningDocument ld = l.getLearningDocument(learningDocument.getName());
+            //modify the databse data and the mirror data
+            LearningDocument el = ld.deleteElaboration(elaboration.getName());
+            learningDocument.deleteElaboration(elaboration.getName());
+            //save the modified lecture to the database
+            oc.store(l);
+            return el;
+        }
+        finally {
+            oc.close();
+        }
+    }
+    //endregion
+
+    //region learning document operations
+    /**
+     * adds a learning document to the database
+     * @param lecture the lecture the learning document belongs to
+     * @param learningDocument the new learning document
+     * @return the added learning document
+     * @throws Exception in case of a database problem
+     */
+    @Override
+    public LearningDocument addLearningDocument(Lecture lecture, LearningDocument learningDocument) throws Exception {
+        openDB();
+        try {
+            //read lecture from the database
+            Lecture l = (Lecture) oc.queryByExample(lecture).next();
+            //modifiy the database data and mirror
+            LearningDocument ld = l.addLearningDocument(learningDocument);
+            lecture.addLearningDocument(learningDocument);
+            //save changes to the database
+            oc.store(l);
+            return ld;
+        }
+        finally {
+            oc.close();
+        }
+    }
+
+    /**
+     * deletes a learning document
+     * @param lecture the lecture the learning document belongs to
+     * @param learningDocument the learning document that is to be deleted
+     * @return the deleted learning document
+     * @throws Exception in case of a database problem
+     */
+    @Override
+    public LearningDocument deleteLearningDocument(Lecture lecture, LearningDocument learningDocument) throws Exception {
+        openDB();
+        try {
+            //read lecture from the database
+            Lecture l = (Lecture) oc.queryByExample(lecture).next();
+            //modify the database data and the mirror
+            LearningDocument ld = l.deleteLearningDocument(learningDocument.getName());
+            lecture.deleteLearningDocument(learningDocument.getName());
+            //save changes
+            oc.store(l);
+            return ld;
+        }
+        finally {
+            oc.close();
+        }
+    }
+    //endregion
+
+    //region rating operations
+    /**
+     * adds a rating to a learning document
+     * @param lecture the lecture the learning document belongs to
+     * @param learningDocument the learning document that is rated
+     * @param rating the new rating
+     * @return the added rating
+     * @throws Exception in case of a database problem
+     */
+    @Override
+    public Rating addRating(Lecture lecture, LearningDocument learningDocument, Rating rating) throws Exception {
+        openDB();
+        try {
+            //read lecture and learning document
+            Lecture l= (Lecture) oc.queryByExample(lecture).next();
+            LearningDocument ld = l.getLearningDocument(learningDocument.getName());
+            //modify the learning document
+            Rating r = ld.addRating(rating);
+            learningDocument.addRating(rating);
+            //save changes to the database
+            oc.store(l);
+            return r;
+        }
+        finally {
+            oc.close();
+        }
+    }
+
+    /**
+     * adds a rating to an elaboration
+     * @param lecture the lecture the elaboration belongs to
+     * @param learningDocument the parent document of the elaboration
+     * @param elaboration the elaboration that is being rated
+     * @param rating the new rating
+     * @return the added rating
+     * @throws Exception in case of a database problem
+     */
+    @Override
+    public Rating addRating(Lecture lecture, LearningDocument learningDocument, LearningDocument elaboration, Rating rating) throws Exception {
+        openDB();
+        try{
+            //read the lecture, parent document and elaboration from the database
+            Lecture l= (Lecture) oc.queryByExample(lecture).next();
+            LearningDocument ld = l.getLearningDocument(learningDocument.getName());
+            LearningDocument el = ld.getElaboration(elaboration.getName());
+            //modify the data
+            Rating r = el.addRating(rating);
+            elaboration.addRating(rating);
+            //save changes
+            oc.store(l);
+            return r;
+        }
+        finally {
+            oc.close();
+        }
+    }
+
+    /**
+     * deletes a rating from a learning document
+     * @param lecture the lecture the learning document belongs to
+     * @param learningDocument the learning document being rated
+     * @param rating the rating that is to be removed
+     * @return the removed rating
+     * @throws Exception in case of a database problem
+     */
+    @Override
+    public Rating deleteRating(Lecture lecture, LearningDocument learningDocument, Rating rating) throws Exception {
+        openDB();
+        try{
+            //read lecture and learning document from the database
+            Lecture l = (Lecture) oc.queryByExample(lecture).next();
+            LearningDocument ld = l.getLearningDocument(learningDocument.getName());
+            //modify the data
+            Rating r = ld.deleteRating(rating.getID());
+            learningDocument.deleteRating(rating.getID());
+            //save changes
+            oc.store(l);
+            return r;
+        }
+        finally {
+            oc.close();
+        }
+    }
+
+    /**
+     * deletes rating from a elaboration
+     * @param lecture the lecture the elaboration belongs to
+     * @param learningDocument the parent document of the elaboration
+     * @param elaboration the elaboration being rated
+     * @param rating the rating that is to be removed
+     * @return the removed rating
+     * @throws Exception in case of a database problem
+     */
+    @Override
+    public Rating deleteRating(Lecture lecture, LearningDocument learningDocument, LearningDocument elaboration, Rating rating) throws Exception {
+        openDB();
+        try {
+            //read the lecture, parent document and elaboration from the database
+            Lecture l = (Lecture) oc.queryByExample(lecture).next();
+            LearningDocument ld = l.getLearningDocument(learningDocument.getName());
+            LearningDocument el = ld.getElaboration(elaboration.getName());
+            //modify the data
+            Rating r = el.deleteRating(rating.getID());
+            elaboration.deleteRating(rating.getID());
+            //save changes
+            oc.store(l);
+            return r;
+        }
+        finally {
+            oc.close();
+        }
+    }
+    //endregion
+}
diff --git a/src/storage/Format.java b/src/storage/Format.java
new file mode 100755
index 0000000..fff5709
--- /dev/null
+++ b/src/storage/Format.java
@@ -0,0 +1,11 @@
+package storage;
+
+/**
+ * the different file formats supported by the application
+ */
+public enum Format {
+    PDF,
+    WORD,
+    TEXT,
+    URL
+}
diff --git a/src/storage/LearningDocument.java b/src/storage/LearningDocument.java
new file mode 100755
index 0000000..b0a00fa
--- /dev/null
+++ b/src/storage/LearningDocument.java
@@ -0,0 +1,173 @@
+package storage;
+
+import java.io.Serializable;
+import java.time.LocalDate;
+import java.util.TreeMap;
+
+/**
+ * the class for documents
+ */
+public class LearningDocument implements Serializable {
+
+    private String name; //the name of the document
+    private Category category; //the category of the document
+    private String memLocation; //the memory location of the document
+    private LocalDate date; //the date at which the document was created
+    private Format format; //the format of the document
+    private TreeMap<String,LearningDocument> elaborations; //the elaborations belonging to the document
+    private TreeMap<String,Rating> ratings; //the ratings given to the document
+
+
+    /**
+     * the constructor for a learning document
+     * @param name the name of the document
+     * @param category the category of the document
+     * @param memLocation the memory location of the document
+     * @param format the format of the document
+     */
+    public LearningDocument(String name, Category category, String memLocation, Format format){
+        this.name = name;
+        this.category = category;
+        this.memLocation = memLocation;
+        this.date = LocalDate.now();
+        this.format = format;
+        elaborations= new TreeMap<>();
+        ratings = new TreeMap<>();
+    }
+
+    //region general getters
+    /**
+     * @return the name of the document
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * @return the category of the document
+     */
+    public Category getCategory() {
+        return category;
+    }
+
+    /**
+     * @return the creation date of the document
+     */
+    public LocalDate getDate() {
+        return date;
+    }
+
+    /**
+     * @return the format of the document
+     */
+    public Format getFormat() {
+        return format;
+    }
+
+    /**
+     * @return the memory location of the document
+     */
+    public String getMemLocation() {
+        return memLocation;
+    }
+    //endregion
+
+    //region elaboration operations
+    /**
+     * adds an elaboration to the document
+     * @param elaboration the new elaboration
+     * @return the added elaboration
+     */
+    public LearningDocument addElaboration(LearningDocument elaboration){
+        return elaborations.put(elaboration.getName(),elaboration);
+    }
+
+    /**
+     * @return the TreeMap of the elaborations belonging to the document
+     */
+    public TreeMap<String, LearningDocument> getElaborations() {
+        return elaborations;
+    }
+
+    /**
+     * returns a specific elaboration
+     * @param name the name of the requested elaboration
+     * @return the requested elaboration
+     */
+    public LearningDocument getElaboration(String name){
+        return elaborations.get(name);
+    }
+
+    /**
+     * @return the number of elaborations belonging to the document
+     */
+    public int getElaborationsAmount(){
+        return elaborations.size();
+    }
+
+    /**
+     * deletes a specific elaboration
+     * @param name the name of the elaboration
+     * @return the deleted elaboration
+     */
+    public LearningDocument deleteElaboration(String name){
+        return elaborations.remove(name);
+    }
+    //endregion
+
+    //region rating operations
+    /**
+     * @return the average rating as a decimal value
+     */
+    public double getRating() {
+        final double[] rating = {0.0};
+        if(ratings.size()==0){return rating[0];}
+        ratings.forEach((k,v)->{
+            rating[0] += v.getRating();
+        });
+        return rating[0]/ratings.size();
+    }
+
+    /**
+     * @return the TreeMap containing all ratings given to the document
+     */
+    public TreeMap<String, Rating> getRatings(){
+        return ratings;
+    }
+
+    /**
+     * adds a rating to the document
+     * @param rating the new rating
+     * @return the added rating
+     */
+    public Rating addRating(Rating rating){
+        return ratings.put(rating.getID(),rating);
+    }
+
+    /**
+     * returns a specific rating
+     * @param id the id of the requested rating
+     * @return the requested rating
+     */
+    public Rating getRating(String id){
+        return ratings.get(id);
+    }
+
+    /**
+     * deletes a specific rating
+     * @param id the id of the rating
+     * @return the deleted rating
+     */
+    public Rating deleteRating(String id){
+        return ratings.remove(id);
+    }
+
+    /**
+     * @return the number of ratings given to the document
+     */
+    public int getRatingsAmount() {
+        return ratings.size();
+    }
+    //endregion
+
+}
diff --git a/src/storage/Lecture.java b/src/storage/Lecture.java
new file mode 100755
index 0000000..c2d1f8b
--- /dev/null
+++ b/src/storage/Lecture.java
@@ -0,0 +1,69 @@
+package storage;
+
+import java.io.Serializable;
+import java.time.LocalDate;
+import java.util.TreeMap;
+
+public class Lecture implements Serializable {
+
+    private String name; //the name of the lecture
+    private TreeMap<String,LearningDocument> learningDocuments; //the learning documents belonging to the lecture
+
+    /**
+     * the constructor of the lecture class
+     * @param name the name of the lecture
+     */
+    public Lecture(String name){
+        this.name = name;
+        learningDocuments = new TreeMap<>();
+    }
+
+    /**
+     * @return the name of the lecture
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * adds a learning document to the lecture
+     * @param learningDocument the new learning document
+     * @return the added learning document
+     */
+    public LearningDocument addLearningDocument(LearningDocument learningDocument){
+        return learningDocuments.put(learningDocument.getName(),learningDocument);
+    }
+
+    /**
+     * deletes a learning document
+     * @param name the name of the learning document
+     * @return the deleted learning document
+     */
+    public LearningDocument deleteLearningDocument(String name){
+        return learningDocuments.remove(name);
+    }
+
+    /**
+     * @return the number of learning documents belonging to the lecture
+     */
+    public int getLearningDocumentAmount(){
+        return learningDocuments.size();
+    }
+
+    /**
+     * @return all the learning documents belonging to the lecture
+     */
+    public TreeMap<String,LearningDocument> getLearningDocuments(){
+        return learningDocuments;
+    }
+
+    /**
+     * returns a specific learning document
+     * @param name the name of the requested learning document
+     * @return the requested learning document
+     */
+    public LearningDocument getLearningDocument(String name){
+        return learningDocuments.get(name);
+    }
+
+}
diff --git a/src/storage/Rating.java b/src/storage/Rating.java
new file mode 100755
index 0000000..3689cb3
--- /dev/null
+++ b/src/storage/Rating.java
@@ -0,0 +1,60 @@
+package storage;
+
+import java.time.LocalDate;
+
+public class Rating {
+    private String ID; //the id of the rating
+    private String ratingText; //the comment given to the rating
+    private String username; //the username of the user that created the rating
+    private LocalDate date; //the creation date of the rating
+    private int rating; //the rating value of the rating (1-5)
+
+    /**
+     * the constructor for the rating class
+     * @param ratingText the comment given to the rating
+     * @param username the username of the user creating the rating
+     * @param rating the value of the rating (1-5)
+     */
+    public Rating(String ratingText, String username, int rating){
+        this.ratingText = ratingText;
+        this.username = username;
+        this.date = LocalDate.now();
+        this.rating = rating;
+        ID = Integer.toString((int) (Math.random()*100000));
+    }
+
+    /**
+     * @return the id of the rating
+     */
+    public String getID() {
+        return ID;
+    }
+
+    /**
+     * @return the comment given to the rating
+     */
+    public String getRatingText() {
+        return ratingText;
+    }
+
+    /**
+     * @return the username of the user that created the rating
+     */
+    public String getUsername() {
+        return username;
+    }
+
+    /**
+     * @return the creation date of the rating
+     */
+    public LocalDate getDate() {
+        return date;
+    }
+
+    /**
+     * @return the value of the rating (1-5)
+     */
+    public int getRating() {
+        return rating;
+    }
+}
diff --git a/src/storage/StorageInterface.java b/src/storage/StorageInterface.java
new file mode 100755
index 0000000..72e9511
--- /dev/null
+++ b/src/storage/StorageInterface.java
@@ -0,0 +1,149 @@
+package storage;
+
+import java.util.TreeMap;
+import java.util.concurrent.ExecutionException;
+
+/**
+ * the interface to access the stored data
+ */
+public interface StorageInterface {
+    /**
+     * @return the stored lectures
+     */
+    TreeMap<String, Lecture> getLectures();
+
+    /**
+     * returns a specific lecture
+     * @param name the name of the requested lecture
+     * @return the requested lecture
+     */
+    Lecture getLecture(String name);
+
+    /**
+     * returns whether or not a specific lecture exists
+     * @param name the name of the lecture
+     * @return whether or not the requested lecture exists
+     */
+    boolean lectureExists(String name);
+
+    /**
+     * @return the number of stored lectures
+     */
+    int getLectureAmount();
+
+    /**
+     * reads the data from the data source
+     * @throws Exception in case of a problem with the data source
+     */
+    void readData() throws Exception;
+
+    /**
+     * saves data to the data source
+     * @throws Exception in case of a problem with the data source
+     */
+    void saveData() throws Exception;
+
+    /**
+     * stores a new elaboration
+     * @param lecture the lecture the elaboration belongs to
+     * @param learningDocument the parent document of the elaboration
+     * @param elaboration the new elaboration
+     * @return the added elaboration
+     * @throws Exception in case of a problem with the storage
+     */
+    LearningDocument addElaboration(Lecture lecture,
+                                     LearningDocument learningDocument,
+                                     LearningDocument elaboration) throws Exception;
+
+    /**
+     * deletes a elaboration
+     * @param lecture the lecture the elaboration belongs to
+     * @param learningDocument the parent document of the elaboration
+     * @param elaboration the elaboration that is to be deleted
+     * @return the deleted elaboration
+     * @throws Exception in case of a problem with the storage
+     */
+    LearningDocument deleteElaboration(Lecture lecture,
+                                                       LearningDocument learningDocument,
+                                                       LearningDocument elaboration) throws Exception;
+
+    /**
+     * adds a new learning document to the storage
+     * @param lecture the lecture the learning document belongs to
+     * @param learningDocument the new learning document
+     * @return the added learning document
+     * @throws Exception in case of a problem with the storage
+     */
+    LearningDocument addLearningDocument(Lecture lecture,
+                                          LearningDocument learningDocument) throws Exception;
+
+    /**
+     * deletes a learning document from the storage
+     * @param lecture the lecture the learning document belongs to
+     * @param learningDocument the learning document that is to be deleted
+     * @return the deleted learning document
+     * @throws Exception in case of a problem with the storage
+     */
+    LearningDocument deleteLearningDocument(Lecture lecture,
+                                            LearningDocument learningDocument) throws Exception;
+
+    /**
+     * adds a new lecture to the storage
+     * @param lecture the new lecture
+     * @return the added lecture
+     * @throws Exception in case of a problem with the storage
+     */
+    Lecture addLecture(Lecture lecture) throws Exception;
+
+    /**
+     * deletes a lecture from the storage
+     * @param lecture the lecture that is to be deleted
+     * @return the deleted lecture
+     * @throws Exception in case of a problem with the storage
+     */
+    Lecture deleteLecture(Lecture lecture) throws Exception;
+
+    /**
+     * adds a new rating to a learning document
+     * @param lecture the lecture the parent document belongs to
+     * @param learningDocument the parent document
+     * @param rating the new rating
+     * @return the added rating
+     * @throws Exception in case of a problem with the storage
+     */
+    Rating addRating(Lecture lecture, LearningDocument learningDocument, Rating rating) throws Exception;
+
+    /**
+     * adds a rating to an elaboration
+     * @param lecture the lecture the elaboration belongs to
+     * @param learningDocument the parent document of the elaboration
+     * @param elaboration the elaboration
+     * @param rating the new rating
+     * @return the added rating
+     * @throws Exception in case of a problem with the storage
+     */
+    Rating addRating(Lecture lecture, LearningDocument learningDocument, LearningDocument elaboration,
+                     Rating rating) throws Exception;
+
+    /**
+     * deletes a rating from a learning document
+     * @param lecture the lecture the learning document belongs to
+     * @param learningDocument the learning document
+     * @param rating the rating
+     * @return the deleted rating
+     * @throws Exception in case of a problem with the storage
+     */
+    Rating deleteRating(Lecture lecture, LearningDocument learningDocument, Rating rating) throws Exception;
+
+    /**
+     * deletes a rating from a elaboration
+     * @param lecture the lecture the elaboration belongs to
+     * @param learningDocument the parent document of the elaboration
+     * @param elaboration the elaboration
+     * @param rating the rating
+     * @return the deleted rating
+     * @throws Exception in case of a problem with the storage
+     */
+    Rating deleteRating(Lecture lecture, LearningDocument learningDocument, LearningDocument elaboration,
+                     Rating rating) throws Exception;
+}
diff --git a/src/ui/GUI.java b/src/ui/GUI.java
new file mode 100755
index 0000000..5c1b3dd
--- /dev/null
+++ b/src/ui/GUI.java
@@ -0,0 +1,68 @@
+package ui;
+
+import LearningMachine.LearningMachine;
+import storage.StorageInterface;
+
+import javax.swing.*;
+
+/**
+ * the basic class for the graphic user interface
+ */
+public abstract class GUI extends UserInterface {
+    protected JFrame frame = new JFrame();
+    protected String frameTitle = "User " + System.getProperty("user.name")+ ", willkommen bei der Lernmaschine!";
+
+    private boolean startupDone = false;
+
+    /**
+     * the constructor for the GUI
+     * @param storageInterface the interface for accessing the stored database
+     */
+    public GUI(StorageInterface storageInterface) {
+        super(storageInterface);
+        readData();
+    }
+
+    /**
+     * starts the GUI
+     */
+    @Override
+    public void start() {
+        SwingUtilities.invokeLater(()->guiBuildAndShow());
+    }
+
+    protected abstract void guiBuildAndShow();
+
+    public abstract void updateTableModel();
+
+    public JFrame getFrame(){return frame;}
+
+    public StorageInterface getDB(){return db;}
+
+    public void readData(){
+        if(LearningMachine.server.equals("")){
+            frame.setTitle(frameTitle + " (lokaler Betrieb)");
+        }
+        else{
+            frame.setTitle(frameTitle + " (Client von: " + LearningMachine.server + ")");
+        }
+        try {
+            db.readData();
+            startupDone = true;
+        }
+        catch (Exception e){
+            String ort = "Daten vom Server " + LearningMachine.server;
+            if(LearningMachine.server.equals("")){ort = "lokale Daten";}
+            String message = "Die "+ ort + " konnten nicht eingelesen werden!\n";
+            if(startupDone){
+                JOptionPane.showMessageDialog(null,message + "Fehlerart: " + e,
+                        "Kein Datenbankzugriff", JOptionPane.WARNING_MESSAGE);
+            }
+            else{
+                JOptionPane.showMessageDialog(null, message + "Fehlerart: " + e,
+                        "Fataler Fehler!", JOptionPane.ERROR_MESSAGE);
+                System.exit(1);
+            }
+        }
+    }
+}
diff --git a/src/ui/SwingTableView.java b/src/ui/SwingTableView.java
new file mode 100755
index 0000000..3b462a6
--- /dev/null
+++ b/src/ui/SwingTableView.java
@@ -0,0 +1,257 @@
+package ui;
+
+import storage.Lecture;
+import storage.StorageInterface;
+import ui.eventlistener.*;
+import ui.guiDialogs.EditLectureDialog;
+import ui.guimenus.*;
+
+import javax.swing.*;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
+import javax.swing.table.DefaultTableModel;
+import javax.swing.text.DefaultEditorKit;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+
+/**
+ * the swing table view
+ */
+public class SwingTableView extends GUI{
+    private Container cp;
+    private JTable table;
+    private DefaultTableModel tableModel = new DefaultTableModel(){
+        public boolean isCellEditable(int rowIndex, int columnIndex){return false;}
+    };
+    private GUI gui = this;
+
+    /**
+     * the constructor for the swing table view
+     * @param db the interface to the database
+     */
+    public SwingTableView(StorageInterface db){
+        super(db);
+    }
+
+    /**
+     * builds and displays the table view
+     */
+    protected void guiBuildAndShow(){
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+        buildMenus();
+
+        cp = frame.getContentPane();
+
+        buildTable();
+        buildSelectionBar();
+
+        frame.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+        frame.pack();
+        GraphicsEnvironment graphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
+        Point centerPoint = graphicsEnvironment.getCenterPoint();
+        frame.setLocation(centerPoint.x/4, centerPoint.y/4);
+        frame.setVisible(true);
+    }
+
+    /**
+     * build the menu bar in the main view
+     */
+    public void buildMenus(){
+        JMenuBar menuBar = new JMenuBar();
+        //build all menus
+        JMenu editMenu = JTableMenus.EDIT.createMenu();
+        JMenu registerMenu = JTableMenus.REGISTER.createMenu();
+        JMenu helpMenu = JTableMenus.HELP.createMenu();
+
+        //add menus to menu bar
+        menuBar.add(editMenu);
+        menuBar.add(registerMenu);
+        menuBar.add(helpMenu);
+
+        //menu entries for the edit menu
+        JMenuItem cut = new JMenuItem(new DefaultEditorKit.CutAction());
+        cut.setText(EditMenu.CUT.toString());
+        JMenuItem copy = new JMenuItem(new DefaultEditorKit.CopyAction());
+        copy.setText(EditMenu.COPY.toString());
+        JMenuItem paste = new JMenuItem(new DefaultEditorKit.PasteAction());
+        paste.setText(EditMenu.PASTE.toString());
+        editMenu.add(cut);
+        editMenu.add(copy);
+        editMenu.add(paste);
+
+        //menu entries for the register menu
+        RegisterMenuListener registerMenuListener = new RegisterMenuListener(this);
+        for(RegisterMenu registerItem : RegisterMenu.values()){
+            registerMenu.add(registerItem.createMenuItemWithListener(registerMenuListener));
+        }
+
+        //menu entries for the help menu
+        JMenuItem pHelp = new JMenuItem(HelpMenu.INFO.toString());
+        pHelp.addActionListener(new HelpActionListener(this));
+        helpMenu.add(pHelp);
+
+        //add menu bar to the frame
+        frame.setJMenuBar(menuBar);
+    }
+
+    /**
+     * builds the table in the main view
+     */
+    public void buildTable(){
+        //set column names
+        String[] columnNames = {"Lehrveranstaltung(LV)","Lerndokumente","Ausarbeitungen"};
+        tableModel.setColumnIdentifiers(columnNames);
+
+        //load data
+        updateTableModel();
+
+        //generate JTable and ScrollPane
+        table = new JTable(tableModel);
+        //enable row selection
+        table.setRowSelectionAllowed(true);
+        table.setColumnSelectionAllowed(false);
+        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+        JScrollPane scrollPane = new JScrollPane(table);
+
+        //define size of scroll pane
+        table.setPreferredScrollableViewportSize(new Dimension(300,80));
+        cp.add(scrollPane);
+    }
+
+    /**
+     * builds the lecture selection bar in the main view
+     */
+    public void buildSelectionBar(){
+        JPanel jPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
+        jPanel.add(new JLabel("LV:"));
+        final JTextField textField = new JTextField(13);
+        jPanel.add(textField);
+        JButton searchButton = new JButton("Lerndokumente anzeigen");
+        searchButton.addActionListener(new ShowListLearningDocumentListener(this, textField));
+        jPanel.add(searchButton);
+        JButton searchElaborationButton = new JButton("Ausarbeitungen anzeigen");
+        searchElaborationButton.addActionListener(new ShowListElaborationListener(this, textField));
+        jPanel.add(searchElaborationButton);
+
+        //add the panel to the frame
+        cp.add(jPanel);
+
+        //copy the selected lecture to the textfield
+        table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
+            /**
+             * updates the text field in the selection view
+             * @param e the selection event that triggered this function
+             */
+            @Override
+            public void valueChanged(ListSelectionEvent e) {
+                int[] selectedRows = table.getSelectedRows();
+                if(selectedRows.length==0){
+                    textField.setText("");
+                }else{
+                    int selectedRow = selectedRows[0];
+                    textField.setText((String) table.getValueAt(selectedRow, 0));
+                }
+            }
+        });
+
+        //popup menu on right mouse click
+        table.addMouseListener(new MouseAdapter() {
+            /**
+             * the function that is triggered when the user right clicks on a lecture
+             */
+            @Override
+            public void mouseReleased(MouseEvent e) {
+                //set row under mouse as selected row in table
+                int r = table.rowAtPoint(e.getPoint());
+                if(r>=0 && r<table.getRowCount()){
+                    table.setRowSelectionInterval(r, r);
+                }else{
+                    table.clearSelection();
+                }
+
+                //get the selected row
+                int rowindex = table.getSelectedRow();
+                if(rowindex < 0){return;}
+                int button = e.getButton();
+                boolean isTable = e.getComponent() instanceof JTable;
+                int selectedRow = table.getSelectedRows()[0];
+                //when the right mouse button is clicked display the popup menu
+                if(button==3 && isTable){
+                    JPopupMenu popupMenu = new JPopupMenu("Edit");
+                    JMenuItem editItem = new JMenuItem("Bearbeiten");
+                    JMenuItem deleteItem = new JMenuItem("Löschen");
+                    //region action listeners
+                    editItem.addActionListener(new ActionListener() {
+                        /**
+                         * the function that is triggered when the user clicks the edit menu point in the edit menu
+                         * @param actionEvent the action event that triggered the function
+                         */
+                        @Override
+                        public void actionPerformed(ActionEvent actionEvent) {
+                            String lectureName = table.getValueAt(selectedRow,0).toString();
+                            new EditLectureDialog(gui, db.getLecture(lectureName));
+                        }
+                    });
+
+                    deleteItem.addActionListener(new ActionListener() {
+                        /**
+                         * the function that is triggered when the user clicks the delete menu point in the popup menu
+                         * @param actionEvent the action event that triggered the function
+                         */
+                        @Override
+                        public void actionPerformed(ActionEvent actionEvent) {
+                            String lectureName = table.getValueAt(selectedRow,0).toString();
+                            int dialogResult = JOptionPane.showConfirmDialog(null,
+                                    "Sind Sie sicher, dass die Lehrveranstaltung " +
+                                            lectureName + " löschen wollen?");
+                            if(dialogResult == JOptionPane.YES_OPTION){
+                                try {
+                                    db.deleteLecture(db.getLecture(lectureName));
+                                } catch (Exception e) {
+                                    JOptionPane.showMessageDialog(null,
+                                            "Die Lehrveranstaltung konnten nicht gelöscht werden!\n - " +
+                                                    e, "Aufruf fehlgeschlagen",
+                                            JOptionPane.WARNING_MESSAGE);
+                                }
+                                updateTableModel();
+                            }
+                        }
+                    });
+                    //endregion
+
+                    //build the popup menu
+                    popupMenu.add(editItem);
+                    popupMenu.add(deleteItem);
+
+                    //display the popup menu
+                    popupMenu.show(e.getComponent(), e.getX(), e.getY());
+                    popupMenu.setVisible(true);
+                }
+            }
+        });
+    }
+
+    /**
+     * updates the table containing the lectures
+     */
+    @Override
+    public void updateTableModel(){
+        tableModel.setRowCount(db.getLectureAmount());
+        //fill table
+        int row = 0;
+        for(Lecture lecture : db.getLectures().values()){
+            tableModel.setValueAt(lecture.getName(),row,0);
+            tableModel.setValueAt(lecture.getLearningDocuments().size()+"",row,1);
+            int elaborationsAmount = 0;
+            for(String name : lecture.getLearningDocuments().keySet()){
+                elaborationsAmount += lecture.getLearningDocument(name).getElaborationsAmount();
+            }
+            tableModel.setValueAt(elaborationsAmount+"",row,2);
+            row++;
+        }
+    }
+}
diff --git a/src/ui/UserInterface.java b/src/ui/UserInterface.java
new file mode 100755
index 0000000..c71001c
--- /dev/null
+++ b/src/ui/UserInterface.java
@@ -0,0 +1,44 @@
+package ui;
+
+import storage.Format;
+import storage.StorageInterface;
+
+import java.awt.*;
+import java.io.File;
+import java.net.URI;
+
+/**
+ * the base class for all user interfaces
+ */
+public abstract class UserInterface {
+    protected StorageInterface db;
+
+    /**
+     * the constructor for the user interface
+     * @param storageInterface the interface to the storage
+     */
+    public UserInterface(StorageInterface storageInterface){
+        db = storageInterface;
+    }
+    public abstract void start();
+
+    /**
+     * opens a file
+     * @param format the format of the file
+     * @param memLocation the memory location of the file
+     * @throws Exception in case of a problem while opening the file
+     */
+    public static void openDocument(Format format, String memLocation)
+    throws Exception{
+        switch (format){
+            case PDF:
+            case TEXT:
+            case WORD:
+                Desktop.getDesktop().open(new File(memLocation));
+                break;
+            case URL:
+                Desktop.getDesktop().browse(URI.create(memLocation));
+                break;
+        }
+    }
+}
diff --git a/src/ui/eventlistener/AddRatingsListener.java b/src/ui/eventlistener/AddRatingsListener.java
new file mode 100755
index 0000000..a714210
--- /dev/null
+++ b/src/ui/eventlistener/AddRatingsListener.java
@@ -0,0 +1,95 @@
+package ui.eventlistener;
+
+import storage.LearningDocument;
+import storage.Lecture;
+import storage.StorageInterface;
+import ui.GUI;
+import ui.guiDialogs.AddRatingDialog;
+
+import javax.swing.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.MouseAdapter;
+
+/**
+ * the action listener that handles the creation of a new rating
+ */
+public class AddRatingsListener extends MouseAdapter implements ActionListener {
+    private GUI gui;
+    private JFrame frame;
+    private Lecture lecture;
+    private LearningDocument currentDocument;
+    private LearningDocument parentDocument;
+    private JTextField ratingsTextField;
+    private JTable selectionTable;
+    private boolean forElaboration;
+    private StorageInterface db;
+    private ShowListLearningDocumentListener showListLearningDocumentListener;
+    private ShowListElaborationListener showListElaborationListener;
+
+    /**
+     * the constructor for the listener
+     * @param gui the main GUI
+     * @param lecture the lecture the rating is in
+     * @param ratingsTextField the content of the rating text field
+     * @param selectionTable the selection table
+     * @param isElaboration whether or not the parent document of the new rating is a elaboration
+     * @param showListElaborationListener the list listener in the elaboration view
+     * @param showListLearningDocumentListener the list listener in the learning document view
+     */
+    public AddRatingsListener(GUI gui, Lecture lecture, JTextField ratingsTextField,JTable selectionTable,
+                              boolean isElaboration, ShowListElaborationListener showListElaborationListener,
+                              ShowListLearningDocumentListener showListLearningDocumentListener){
+        this.gui = gui;
+        frame = gui.getFrame();
+        db = gui.getDB();
+        this.lecture = lecture;
+        this.currentDocument = null;
+        this.parentDocument = null;
+        this.ratingsTextField = ratingsTextField;
+        this.selectionTable = selectionTable;
+        this.forElaboration = isElaboration;
+        this.showListElaborationListener = showListElaborationListener;
+        this.showListLearningDocumentListener = showListLearningDocumentListener;
+    }
+
+    /**
+     * the function that is triggered when an action event occurs
+     * @param actionEvent the action event that triggered the function
+     */
+    @Override
+    public void actionPerformed(ActionEvent actionEvent) {
+        //get the document for the rating
+        if(ratingsTextField.getText().equals("")){return;}
+        int rowCount = selectionTable.getRowCount();
+        if(forElaboration){
+            //for elaborations
+            //get the parent document
+            for(int i = 0; i<rowCount; i++){
+                if(((String)selectionTable.getValueAt(i,0)).equals(ratingsTextField.getText())){
+                    parentDocument = lecture.getLearningDocument((String)selectionTable.getValueAt(i,6));
+                    break;
+                }
+            }
+            if(parentDocument==null){return;}
+            //get the elaboration
+            currentDocument = parentDocument.getElaboration(ratingsTextField.getText());
+            if(currentDocument==null){return;}
+        }else{
+            //for learning documents
+            //get the learning document
+            currentDocument = lecture.getLearningDocument(ratingsTextField.getText());
+            if(currentDocument == null){return;}
+        }
+        if(forElaboration){
+            //for elaborations
+            //open the dialog for adding a new rating
+            new AddRatingDialog(gui,lecture,parentDocument,currentDocument,showListElaborationListener);
+        }else{
+            //for learning documents
+            //open the dialog for adding a new rating
+            new AddRatingDialog(gui,lecture,currentDocument,showListLearningDocumentListener);
+        }
+
+    }
+}
diff --git a/src/ui/eventlistener/HelpActionListener.java b/src/ui/eventlistener/HelpActionListener.java
new file mode 100755
index 0000000..4fc66c8
--- /dev/null
+++ b/src/ui/eventlistener/HelpActionListener.java
@@ -0,0 +1,44 @@
+package ui.eventlistener;
+
+import ui.GUI;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+/**
+ * the action listener for the help menu
+ */
+public class HelpActionListener implements ActionListener {
+
+    private JFrame frame;
+
+    /**
+     * the constructor for the listener
+     * @param gui the main GUI
+     */
+    public HelpActionListener(GUI gui){
+        frame = gui.getFrame();
+    }
+
+    /**
+     * the function that is triggered when the user clicks on an option in the help menu
+     * @param actionEvent the action event that triggered the function
+     */
+    @Override
+    public void actionPerformed(ActionEvent actionEvent) {
+        //create the image for the info dialog
+        Image image = frame.getToolkit().getImage("Help.jpg");
+        ImageIcon imageIcon = new ImageIcon(image);
+
+        //create the dialog
+        JOptionPane.showMessageDialog(frame, "Die Lernmaschine\n" +
+                "Version: V2020.1\n" +
+                "von: Paul Lödige\n" +
+                "Matrikelnr.: 15405036",
+                "Programminfo",
+                JOptionPane.INFORMATION_MESSAGE,
+                imageIcon);
+    }
+}
diff --git a/src/ui/eventlistener/RegisterMenuListener.java b/src/ui/eventlistener/RegisterMenuListener.java
new file mode 100755
index 0000000..645fb5d
--- /dev/null
+++ b/src/ui/eventlistener/RegisterMenuListener.java
@@ -0,0 +1,58 @@
+package ui.eventlistener;
+
+import storage.StorageInterface;
+import ui.GUI;
+import ui.guiDialogs.AddElaborationDialog;
+import ui.guiDialogs.AddLearningDocumentDialog;
+import ui.guiDialogs.AddLectureDialog;
+import ui.guimenus.RegisterMenu;
+
+import javax.swing.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+/**
+ * the listener class for the register menu
+ */
+public class RegisterMenuListener implements ActionListener {
+    private JFrame frame;
+    private StorageInterface db;
+    private GUI gui;
+
+    /**
+     * the constructor for the listener
+     * @param gui the main GUI
+     */
+    public RegisterMenuListener(GUI gui){
+        this.gui = gui;
+        frame = gui.getFrame();
+        db = gui.getDB();
+    }
+
+    /**
+     * the function triggered by the user clicking an option in the register menu
+     * @param actionEvent the action event that triggered the function
+     */
+    @Override
+    public void actionPerformed(ActionEvent actionEvent) {
+        //default is Lecture
+        RegisterMenu chosenMenu = RegisterMenu.ADD_LECTURE;
+        if(actionEvent.getActionCommand().equals("neue Ausarbeitung")){
+            chosenMenu = RegisterMenu.ADD_ELABORATION;
+        }
+        if(actionEvent.getActionCommand().equals("neues Lerndokument")){
+            chosenMenu = RegisterMenu.ADD_LEARNING_DOCUMENT;
+        }
+        switch(chosenMenu){
+            case ADD_LECTURE:
+                new AddLectureDialog(gui);
+                break;
+            case ADD_LEARNING_DOCUMENT:
+                new AddLearningDocumentDialog(gui);
+                break;
+            case ADD_ELABORATION:
+                new AddElaborationDialog(gui);
+                break;
+        }
+    }
+}
diff --git a/src/ui/eventlistener/ShowListElaborationListener.java b/src/ui/eventlistener/ShowListElaborationListener.java
new file mode 100755
index 0000000..8ffd1fb
--- /dev/null
+++ b/src/ui/eventlistener/ShowListElaborationListener.java
@@ -0,0 +1,288 @@
+package ui.eventlistener;
+
+import LearningMachine.LearningMachine;
+import storage.LearningDocument;
+import storage.Lecture;
+import storage.StorageInterface;
+import ui.GUI;
+import ui.UserInterface;
+import ui.guiDialogs.EditElaborationDialog;
+import ui.guiDialogs.EditLearningDocumentDialog;
+
+import javax.swing.*;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
+import javax.swing.table.DefaultTableModel;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+
+/**
+ * the listener class to list the elaborations
+ */
+public class ShowListElaborationListener extends MouseAdapter implements ActionListener {
+    private GUI gui;
+    private JFrame frame;
+    private JTextField searchField;
+    private String lectureName;
+    private StorageInterface db;
+    private DefaultTableModel tableModel;
+    private ShowListElaborationListener showListElaborationListener = this;
+
+    /**
+     * the constructor of the listener
+     * @param gui the main GUI
+     * @param searchField the search field containing the name of the selected lecture
+     */
+    public ShowListElaborationListener(GUI gui, JTextField searchField){
+        this.gui = gui;
+        frame = gui.getFrame();
+        db = gui.getDB();
+        this.searchField = searchField;
+    }
+
+    /**
+     * the function triggered by pressing the show elaboration button
+     */
+    @Override
+    public void actionPerformed(ActionEvent eventObject) {
+        //read the lecture name
+        lectureName = searchField.getText();
+        if(lectureName.equals("")){
+            //no input: update the list
+            if(!LearningMachine.server.equals("")){
+                try{
+                    gui.readData();
+                    gui.updateTableModel();
+                }catch (Exception e){
+                    JOptionPane.showMessageDialog(null,
+                            "Die Daten konnten nicht eingelesen werden!\n - " +
+                                    e, "Aufruf fehlgeschlagen",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+
+                String title = frame.getTitle();
+                frame.setTitle("Daten aufgefrischt!");
+                try{
+                    Thread.currentThread().sleep(1000);
+                }
+                catch (Exception e){
+                    e.printStackTrace();
+                }
+                frame.setTitle(title);
+            }
+            return;
+        }
+        //process the event
+        processEvent();
+    }
+
+    /**
+     * the function that builds and displays the elaboration list dialog
+     */
+    private void processEvent(){
+        //create the table model
+        tableModel = new DefaultTableModel(){
+            public boolean isCellEditable(int rowIndex, int columnIndex){return false;}
+        };
+
+        //get List of learning documents belonging to the lecture
+        Lecture lecture = db.getLecture(lectureName);
+        if(lecture == null){return;}
+
+        //show dialog for found entries
+        final JDialog searchDialog;
+        searchDialog = new JDialog(frame, "Ausarbeitungen von " + lectureName, false);
+        //add table information
+        String[] columnNames = {"Ausarbeitung", "Bewertung", "Anzahl Bew.", "Speicherort", "Format",
+                "Datum", "zum Lerndokument"};
+        tableModel.setColumnIdentifiers(columnNames);
+        //fill table
+        updateTableModel(lecture);
+
+        searchDialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+        Container cp = searchDialog.getContentPane();
+        //generate BoxLayout manager
+        searchDialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+        //generate a ScrollPane to view the content
+        final JTable table = new JTable(tableModel);
+        table.setRowSelectionAllowed(true);
+        table.setColumnSelectionAllowed(false);
+        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+        JScrollPane scrollPane = new JScrollPane(table);
+        //define the size of the scroll pane
+        table.setPreferredScrollableViewportSize(new Dimension(800,80));
+        table.doLayout();
+
+        //ratings panel
+        JPanel ratingsPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
+        ratingsPanel.add(new JLabel("Name:"));
+        final JTextField ratingsTextField = new JTextField(13);
+        ratingsPanel.add(ratingsTextField);
+        JButton showRatingsButton = new JButton("Bewertungen anzeigen");
+        showRatingsButton.addActionListener(new ShowRatingsListener(gui, lecture, ratingsTextField, table,
+                true));
+        ratingsPanel.add(showRatingsButton);
+        JButton addRatingButton = new JButton("Bewertung hinzufügen");
+        addRatingButton.addActionListener(new AddRatingsListener(gui, lecture, ratingsTextField, table,
+                true, this, null));
+        ratingsPanel.add(addRatingButton);
+
+        //add content to container
+        cp.add(scrollPane);
+        cp.add(ratingsPanel);
+        cp.add(new JLabel("Dokument durch Doppelklick auf eine Zeile anzeigen"));
+
+        //update the selection field
+        table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
+            @Override
+            public void valueChanged(ListSelectionEvent listSelectionEvent) {
+                int[] selectedRows = table.getSelectedRows();
+                if(selectedRows.length==0){
+                    ratingsTextField.setText("");
+                }else{
+                    int selectedRow = selectedRows[0];
+                    ratingsTextField.setText((String) table.getValueAt(selectedRow,0));
+                }
+            }
+        });
+
+        //enable double click functionality
+        table.addMouseListener(new MouseAdapter() {
+            /**
+             * the function that is triggered when the user clicks on an elaboration
+             */
+            @Override
+            public void mouseClicked(MouseEvent me){
+                //display the document if the user clicked twice
+                if(me.getClickCount() == 2){
+                    String name = (String)table.getValueAt(table.getSelectedRows()[0],0);
+                    if(table.getColumnName(6).equals("Format")){
+                        showDocument(lecture.getLearningDocument(name));
+                    }
+                    else{
+                        String ldName = (String)table.getValueAt(table.getSelectedRows()[0], 6);
+                        showDocument(lecture.getLearningDocument(ldName).getElaboration(name));
+                    }
+                }
+            }
+
+            /**
+             * the function that is triggered when the user right clicked on an elaboration
+             * @param e
+             */
+            @Override
+            public void mouseReleased(MouseEvent e) {
+                //get the row under the mouse
+                int r = table.rowAtPoint(e.getPoint());
+                //sets the row selection interval
+                if(r>=0 && r<table.getRowCount()){
+                    table.setRowSelectionInterval(r, r);
+                }else{
+                    table.clearSelection();
+                }
+                //gets the selected row
+                int rowindex = table.getSelectedRow();
+                if(rowindex < 0){return;}
+                int button = e.getButton();
+                boolean isTable = e.getComponent() instanceof JTable;
+                int selectedRow = table.getSelectedRows()[0];
+                //open the edit menu when the user performed a right click
+                if(button==3 && isTable){
+                    JPopupMenu popupMenu = new JPopupMenu("Edit");
+                    JMenuItem editItem = new JMenuItem("Bearbeiten");
+                    JMenuItem deleteItem = new JMenuItem("Löschen");
+                    //region action listeners
+                    editItem.addActionListener(new ActionListener() {
+                        @Override
+                        public void actionPerformed(ActionEvent actionEvent) {
+                            String learningDocumentName = table.getValueAt(selectedRow,6).toString();
+                            LearningDocument learningDocument = lecture.getLearningDocument(learningDocumentName);
+                            String elaborationName = table.getValueAt(selectedRow,0).toString();
+                            LearningDocument elaboration = learningDocument.getElaboration(elaborationName);
+                            new EditElaborationDialog(gui, lecture, learningDocument, elaboration,
+                                    showListElaborationListener);
+                        }
+                    });
+
+                    deleteItem.addActionListener(new ActionListener() {
+                        @Override
+                        public void actionPerformed(ActionEvent actionEvent) {
+                            String learningDocumentName = table.getValueAt(selectedRow,6).toString();
+                            LearningDocument learningDocument = lecture.getLearningDocument(learningDocumentName);
+                            String elaborationName = table.getValueAt(selectedRow,0).toString();
+                            LearningDocument elaboration = learningDocument.getElaboration(elaborationName);
+                            int dialogResult = JOptionPane.showConfirmDialog(null,
+                                    "Sind Sie sicher, dass das Lerndokument " +
+                                            learningDocumentName + " löschen wollen?");
+                            if(dialogResult == JOptionPane.YES_OPTION){
+                                try {
+                                    db.deleteElaboration(lecture,learningDocument,elaboration);
+                                } catch (Exception e) {
+                                    JOptionPane.showMessageDialog(null,
+                                            "Das Lerndokument konnten nicht gelöscht werden!\n - " +
+                                                    e, "Aufruf fehlgeschlagen",
+                                            JOptionPane.WARNING_MESSAGE);
+                                }
+                                gui.updateTableModel();
+                                updateTableModel(lecture);
+                            }
+                        }
+                    });
+                    //endregion
+                    popupMenu.add(editItem);
+                    popupMenu.add(deleteItem);
+                    popupMenu.show(e.getComponent(), e.getX(), e.getY());
+                    popupMenu.setVisible(true);
+                }
+            }
+        });
+
+        //display Dialog
+        searchDialog.pack();
+        searchDialog.setLocationRelativeTo(frame);
+        searchDialog. setVisible(true);
+    }
+
+    /**
+     * displays a learning document
+     * @param learningDocument the learning document that is to be displayed
+     */
+    private void showDocument(LearningDocument learningDocument){
+        try{
+            UserInterface.openDocument(learningDocument.getFormat(), learningDocument.getMemLocation());
+        }
+        catch(Exception e){
+            JOptionPane.showMessageDialog(null,"Das Lerndokument " +
+                            learningDocument.getName() + " kann nicht angezeigt werden!\n - " + e, "Aufruf fehlgeschlagen",
+                    JOptionPane.WARNING_MESSAGE);
+        }
+    }
+
+    /**
+     * updates the table model of elaboration
+     * @param lecture the lecture that has been edited
+     */
+    public void updateTableModel(Lecture lecture){
+        int rowCount = 0;
+        for(LearningDocument ld : lecture.getLearningDocuments().values()){
+            rowCount += ld.getElaborationsAmount();
+        }
+        tableModel.setRowCount(rowCount);
+        int n = 0;
+        for(LearningDocument ld : lecture.getLearningDocuments().values()){
+            for(LearningDocument el : ld.getElaborations().values()){
+                tableModel.setValueAt(el.getName(), n, 0);
+                tableModel.setValueAt(el.getRating(), n, 1);
+                tableModel.setValueAt(el.getRatingsAmount(), n, 2);
+                tableModel.setValueAt(el.getMemLocation(), n, 3);
+                tableModel.setValueAt(el.getFormat().toString(), n, 4);
+                tableModel.setValueAt(el.getDate().toString(), n, 5);
+                tableModel.setValueAt(ld.getName(), n, 6);
+                n++;
+            }
+        }
+    }
+}
diff --git a/src/ui/eventlistener/ShowListLearningDocumentListener.java b/src/ui/eventlistener/ShowListLearningDocumentListener.java
new file mode 100755
index 0000000..9a0a4e0
--- /dev/null
+++ b/src/ui/eventlistener/ShowListLearningDocumentListener.java
@@ -0,0 +1,270 @@
+package ui.eventlistener;
+
+import LearningMachine.LearningMachine;
+import storage.LearningDocument;
+import storage.Lecture;
+import storage.StorageInterface;
+import ui.GUI;
+import ui.UserInterface;
+import ui.guiDialogs.EditLearningDocumentDialog;
+
+import javax.swing.*;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
+import javax.swing.table.DefaultTableModel;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+
+/**
+ * the listener that lists the learning documents
+ */
+public class ShowListLearningDocumentListener extends MouseAdapter implements ActionListener {
+    private GUI gui;
+    private JFrame frame;
+    private JTextField searchField;
+    private String lectureName;
+    private StorageInterface db;
+    private DefaultTableModel tableModel;
+    private ShowListLearningDocumentListener showListLearningDocumentListener = this;
+
+    /**
+     * the constructor for the listener
+     * @param gui the main GUI
+     * @param searchField the search field that contains the lecture name the learning documents belong to
+     */
+    public ShowListLearningDocumentListener(GUI gui, JTextField searchField){
+        this.gui = gui;
+        frame = gui.getFrame();
+        db = gui.getDB();
+        this.searchField = searchField;
+    }
+
+    /**
+     * the function triggered by the user clicking on a lecture
+     * @param eventObject
+     */
+    @Override
+    public void actionPerformed(ActionEvent eventObject) {
+        //gets the name of the lecture
+        lectureName = searchField.getText();
+        if(lectureName.equals("")){
+            //no input: update the list
+            if(!LearningMachine.server.equals("")){
+                try{
+                    gui.readData();
+                    gui.updateTableModel();
+                }catch (Exception e){
+                    JOptionPane.showMessageDialog(null,
+                            "Die Daten konnten nicht eingelesen werden!\n - " +
+                                    e, "Aufruf fehlgeschlagen",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+
+                String title = frame.getTitle();
+                frame.setTitle("Daten aufgefrischt!");
+                try{
+                    Thread.currentThread().sleep(1000);
+                }
+                catch (Exception e){
+                    e.printStackTrace();
+                }
+                frame.setTitle(title);
+            }
+            return;
+        }
+        //processes the event
+        processEvent();
+    }
+
+    /**
+     * builds and displays the list of learning documents
+     */
+    private void processEvent(){
+        //create a table model
+        tableModel = new DefaultTableModel(){
+            @Override
+            public boolean isCellEditable(int rowIndex, int columnIndex){return false;}
+        };
+
+        //get List of learning documents belonging to the lecture
+        Lecture lecture = db.getLecture(lectureName);
+        if(lecture == null){return;}
+
+        //show dialog for found entries
+        final JDialog searchDialog;
+        searchDialog = new JDialog(frame,"Lerndokumente von "+ lectureName,false);
+        //add table information
+        String[] columnNames = {"Name", "Bewertung", "Anzahl Bew.", "Kategorie", "Speicherort",
+                "Datum", "Format", "Ausarbeitungen"};
+        tableModel.setColumnIdentifiers(columnNames);
+        tableModel.setRowCount(lecture.getLearningDocumentAmount());
+        //fill table
+        updateTableModel(lecture);
+
+        searchDialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+        Container cp = searchDialog.getContentPane();
+        //generate BoxLayout manager
+        searchDialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+        //generate a ScrollPane to view the content
+        final JTable table = new JTable(tableModel);
+        table.setRowSelectionAllowed(true);
+        table.setColumnSelectionAllowed(false);
+        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+        JScrollPane scrollPane = new JScrollPane(table);
+        //define the size of the scroll pane
+        table.setPreferredScrollableViewportSize(new Dimension(800,80));
+        table.doLayout();
+
+        //ratings panel
+        JPanel ratingsPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
+        ratingsPanel.add(new JLabel("Name:"));
+        final JTextField ratingsTextField = new JTextField(13);
+        ratingsPanel.add(ratingsTextField);
+        JButton showRatingsButton = new JButton("Bewertungen anzeigen");
+        showRatingsButton.addActionListener(new ShowRatingsListener(gui, lecture,ratingsTextField, table,
+                false));
+        ratingsPanel.add(showRatingsButton);
+        JButton addRatingButton = new JButton("Bewertung hinzufügen");
+        addRatingButton.addActionListener(new AddRatingsListener(gui, lecture,ratingsTextField, table,
+                false, null, this));
+        ratingsPanel.add(addRatingButton);
+
+        //add content to the container
+        cp.add(scrollPane);
+        cp.add(ratingsPanel);
+        cp.add(new JLabel("Dokument durch Doppelklick auf eine Zeile anzeigen"));
+
+        //update the selection field
+        table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
+            @Override
+            public void valueChanged(ListSelectionEvent listSelectionEvent) {
+                int[] selectedRows = table.getSelectedRows();
+                if(selectedRows.length==0){
+                    ratingsTextField.setText("");
+                }else{
+                    int selectedRow = selectedRows[0];
+                    ratingsTextField.setText((String) table.getValueAt(selectedRow,0));
+                }
+            }
+        });
+
+        //enable double click functionality
+        table.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseClicked(MouseEvent me){
+                if(me.getClickCount() == 2){
+                    String name = (String)table.getValueAt(table.getSelectedRows()[0],0);
+                    if(table.getColumnName(6).equals("Format")){
+                        showDocument(lecture.getLearningDocument(name));
+                    }
+                    else{
+                        String ldName = (String)table.getValueAt(table.getSelectedRows()[0], 6);
+                        showDocument(lecture.getLearningDocument(ldName).getElaboration(name));
+                    }
+                }
+            }
+
+            //enable right click functionality
+            @Override
+            public void mouseReleased(MouseEvent e) {
+                int r = table.rowAtPoint(e.getPoint());
+                if(r>=0 && r<table.getRowCount()){
+                    table.setRowSelectionInterval(r, r);
+                }else{
+                    table.clearSelection();
+                }
+
+                int rowindex = table.getSelectedRow();
+                if(rowindex < 0){return;}
+                int button = e.getButton();
+                boolean isTable = e.getComponent() instanceof JTable;
+                int selectedRow = table.getSelectedRows()[0];
+                if(button==3 && isTable){
+                    JPopupMenu popupMenu = new JPopupMenu("Edit");
+                    JMenuItem editItem = new JMenuItem("Bearbeiten");
+                    JMenuItem deleteItem = new JMenuItem("Löschen");
+                    //region action listeners
+                    editItem.addActionListener(new ActionListener() {
+                        @Override
+                        public void actionPerformed(ActionEvent actionEvent) {
+                            String learningDocumentName = table.getValueAt(selectedRow,0).toString();
+                            new EditLearningDocumentDialog(gui, lecture,
+                                    lecture.getLearningDocument(learningDocumentName),
+                                    showListLearningDocumentListener);
+                        }
+                    });
+
+                    deleteItem.addActionListener(new ActionListener() {
+                        @Override
+                        public void actionPerformed(ActionEvent actionEvent) {
+                            String learningDocumentName = table.getValueAt(selectedRow,0).toString();
+                            int dialogResult = JOptionPane.showConfirmDialog(null,
+                                    "Sind Sie sicher, dass das Lerndokument " +
+                                            learningDocumentName + " löschen wollen?");
+                            if(dialogResult == JOptionPane.YES_OPTION){
+                                try {
+                                    db.deleteLearningDocument(lecture,lecture.getLearningDocument(learningDocumentName));
+                                } catch (Exception e) {
+                                    JOptionPane.showMessageDialog(null,
+                                            "Das Lerndokument konnten nicht gelöscht werden!\n - " +
+                                                    e, "Aufruf fehlgeschlagen",
+                                            JOptionPane.WARNING_MESSAGE);
+                                }
+                                gui.updateTableModel();
+                                updateTableModel(lecture);
+                            }
+                        }
+                    });
+                    //endregion
+                    popupMenu.add(editItem);
+                    popupMenu.add(deleteItem);
+                    popupMenu.show(e.getComponent(), e.getX(), e.getY());
+                    popupMenu.setVisible(true);
+                }
+            }
+        });
+
+        //display Dialog
+        searchDialog.pack();
+        searchDialog.setLocationRelativeTo(frame);
+        searchDialog. setVisible(true);
+    }
+
+    /**
+     * displays the learning document
+     * @param learningDocument the learning document that is to be displayed
+     */
+    private void showDocument(LearningDocument learningDocument){
+        try{
+            UserInterface.openDocument(learningDocument.getFormat(), learningDocument.getMemLocation());
+        }
+        catch(Exception e){
+            JOptionPane.showMessageDialog(null,"Die Ausarbeitung " +
+                            learningDocument.getName() + " kann nicht angezeigt werden!\n - " + e, "Aufruf fehlgeschlagen",
+                    JOptionPane.WARNING_MESSAGE);
+        }
+    }
+
+    /**
+     * updates the list of learning documents
+     * @param lecture the lecture the learning documents belong to
+     */
+    public void updateTableModel(Lecture lecture){
+        tableModel.setRowCount(lecture.getLearningDocumentAmount());
+        int row = 0;
+        for (LearningDocument ld : lecture.getLearningDocuments().values()){
+            tableModel.setValueAt(ld.getName(), row, 0);
+            tableModel.setValueAt(String.format("%4.1f",ld.getRating()), row, 1);
+            tableModel.setValueAt(ld.getRatingsAmount(), row, 2);
+            tableModel.setValueAt(ld.getCategory(),row,3);
+            tableModel.setValueAt(ld.getMemLocation(), row, 4);
+            tableModel.setValueAt(ld.getDate().toString(), row, 5);
+            tableModel.setValueAt(ld.getFormat().toString(),row,6);
+            tableModel.setValueAt(ld.getElaborationsAmount(),row,7);
+            row++;
+        }
+    }
+}
diff --git a/src/ui/eventlistener/ShowRatingsListener.java b/src/ui/eventlistener/ShowRatingsListener.java
new file mode 100755
index 0000000..f104b56
--- /dev/null
+++ b/src/ui/eventlistener/ShowRatingsListener.java
@@ -0,0 +1,187 @@
+package ui.eventlistener;
+
+import storage.LearningDocument;
+import storage.Lecture;
+import storage.Rating;
+import storage.StorageInterface;
+import ui.GUI;
+import ui.guiDialogs.ViewRatingDialog;
+
+import javax.swing.*;
+import javax.swing.table.DefaultTableModel;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+
+/**
+ * the action listener that displays the ratings
+ */
+public class ShowRatingsListener extends MouseAdapter implements ActionListener {
+    private GUI gui;
+    private JFrame frame;
+    private Lecture lecture;
+    private LearningDocument currentDocument;
+    private LearningDocument parentDocument;
+    private JTextField ratingsTextField;
+    private JTable selectionTable;
+    private boolean forElaboration;
+    private StorageInterface db;
+    private DefaultTableModel tableModel;
+    private ShowRatingsListener showRatingsListener = this;
+
+    /**
+     * the constructor for the listener
+     * @param gui the main GUI
+     * @param lecture the lecture the parent document belongs to
+     * @param ratingsTextField the rating text field containing the name of the parent document
+     * @param selectionTable the selection table containing the list of possible parent documents
+     * @param isElaboration whether or not the parent document is an elaboration
+     */
+    public ShowRatingsListener(GUI gui, Lecture lecture, JTextField ratingsTextField,JTable selectionTable,
+                               boolean isElaboration){
+        this.gui = gui;
+        frame = gui.getFrame();
+        db = gui.getDB();
+        this.lecture = lecture;
+        this.currentDocument = null;
+        this.parentDocument = null;
+        this.ratingsTextField = ratingsTextField;
+        this.selectionTable = selectionTable;
+        this.forElaboration = isElaboration;
+    }
+
+    /**
+     * the function triggered by the user clicking on the add rating button
+     * @param actionEvent the action event that triggered the function
+     */
+    @Override
+    public void actionPerformed(ActionEvent actionEvent) {
+        //get the document for the rating
+        if(ratingsTextField.getText().equals("")){return;}
+        if(forElaboration){
+            //for elaborations
+            for(int i = 0; i<selectionTable.getRowCount(); i++){
+                if(((String)selectionTable.getValueAt(i,0)).equals(ratingsTextField.getText())){
+                    parentDocument = lecture.getLearningDocument((String)selectionTable.getValueAt(i,6));
+                    break;
+                }
+            }
+            if(parentDocument==null){return;}
+            currentDocument = parentDocument.getElaboration(ratingsTextField.getText());
+            if(currentDocument==null){return;}
+        }else{
+            //for learning documents
+            currentDocument = lecture.getLearningDocument(ratingsTextField.getText());
+            if(currentDocument == null){return;}
+        }
+
+        //create a new table model
+        tableModel = new DefaultTableModel(){
+            @Override
+            public boolean isCellEditable(int row, int column) {return false;}
+        };
+
+        //show dialog for Ratings
+        final JDialog ratingsDialog;
+        ratingsDialog = new JDialog(frame, "Bewertungen von: "+ currentDocument.getName(), false);
+        //add table information
+        String[] columnNames = {"ID","Bewertung", "Kommentar", "Benutzer", "Datum"};
+        tableModel.setColumnIdentifiers(columnNames);
+        tableModel.setRowCount(currentDocument.getRatingsAmount());
+
+        //fill table
+        updateTableModel(currentDocument);
+
+        ratingsDialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+
+        Container cp = ratingsDialog.getContentPane();
+
+        //generate BoxLayout manager
+        ratingsDialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+
+        //initialize the table
+        final JTable table = new JTable(tableModel);
+        table.setRowSelectionAllowed(true);
+        table.setColumnSelectionAllowed(false);
+        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+        //add a scroll pane
+        JScrollPane scrollPane = new JScrollPane(table);
+        table.setPreferredScrollableViewportSize(new Dimension(600,80));
+        table.removeColumn(table.getColumnModel().getColumn(0));
+        table.doLayout();
+
+        //add content to the container
+        cp.add(scrollPane);
+        cp.add(new JLabel("Details durch Doppelklick auf eine Zeile anzeigen"));
+
+        //enable double click functionality
+        table.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseClicked(MouseEvent me) {
+                if (me.getClickCount() == 2) {
+                    String ratingID = (String)table.getModel().getValueAt(table.getSelectedRows()[0],0);
+                    Rating r = currentDocument.getRating(ratingID);
+                    new ViewRatingDialog(gui,r);
+                }
+            }
+        });
+
+        //display dialog
+        ratingsDialog.pack();
+        ratingsDialog.setLocationRelativeTo(frame);
+        ratingsDialog.setVisible(true);
+    }
+
+    /**
+     * updates the list the parent document is from
+     * @param currentDocument the parent document of the rating
+     */
+    public void updateTableModel(LearningDocument currentDocument){
+        tableModel.setRowCount(currentDocument.getRatingsAmount());
+        int row = 0;
+        for (Rating r : currentDocument.getRatings().values()){
+            tableModel.setValueAt(r.getID(),row,0);
+            tableModel.setValueAt(ratingToStars(r.getRating()),row,1);
+            tableModel.setValueAt(getShortText(r.getRatingText()),row,2);
+            tableModel.setValueAt(r.getUsername(),row,3);
+            tableModel.setValueAt( r.getDate(),row,4);
+            row++;
+        }
+    }
+
+    /**
+     * convertes the rating value to a string of stars
+     * @param rating the rating value
+     * @return the rating as a string of stars
+     */
+    private String ratingToStars(int rating){
+        switch (rating){
+            case 1:
+                return "★☆☆☆☆";
+            case 2:
+                return "★★☆☆☆";
+            case 3:
+                return "★★★☆☆";
+            case 4:
+                return "★★★★☆";
+            case 5:
+                return "★★★★★";
+            default:
+                return "☆☆☆☆☆";
+        }
+    }
+
+    /**
+     * normalizes the size of the strings displayed in the rating list
+     * @param longText the text that is to be normalized
+     * @return the normalized text
+     */
+    private String getShortText(String longText){
+        if(longText.length()>23){
+            return longText.substring(0,20)+"...";
+        }
+        return longText;
+    }
+}
diff --git a/src/ui/guiDialogs/AddElaborationDialog.java b/src/ui/guiDialogs/AddElaborationDialog.java
new file mode 100755
index 0000000..0f3c745
--- /dev/null
+++ b/src/ui/guiDialogs/AddElaborationDialog.java
@@ -0,0 +1,126 @@
+package ui.guiDialogs;
+
+import storage.*;
+import ui.GUI;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.ArrayList;
+
+/**
+ * the dialog to add an elaboration
+ */
+public class AddElaborationDialog {
+    private String title = "Ausarbeitung hinzufügen...";
+    private JFrame frame;
+    private StorageInterface db;
+
+    /**
+     * the constructor for the dialog
+     * @param gui the main GUI
+     */
+    public AddElaborationDialog(GUI gui){
+        frame = gui.getFrame();
+        db = gui.getDB();
+        final JDialog dialog = new JDialog(frame, title, false);
+
+        //region Learning Document Selection
+        JLabel learningDocumentLable = new JLabel("Wählen Sie ein Lerndokument aus:");
+        ArrayList<String> learningDocumentsNames = new ArrayList<>();
+        try{
+            for(Lecture l : db.getLectures().values()){
+                for(LearningDocument ld : l.getLearningDocuments().values()){
+                    learningDocumentsNames.add(l.getName() + "|" + ld.getName());
+                }
+            }
+        }catch (Exception e) {
+            JOptionPane.showMessageDialog(null,"Die Lerndokumente konnten nicht " +
+                            "ausgelesen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                    JOptionPane.WARNING_MESSAGE);
+        }
+        final JComboBox<String> learningDocumentSelection = new JComboBox(learningDocumentsNames.toArray());
+        //endregion
+
+        //region Name Selection
+        JLabel nameLabel = new JLabel("Name der Ausarbeitung:");
+        JTextField nametextField = new JTextField(13);
+        //endregion
+
+        //region memory Location Selection
+        JLabel memLocationLabel = new JLabel("Speicherstelle der Ausarbeitung:");
+        JTextField memLocationTextField = new JTextField(32);
+        //endregion
+
+        //region Format Selection
+        JLabel formatLabel = new JLabel("Format der Ausarbeitung");
+        final JComboBox<Format> formatSelection = new JComboBox(Format.class.getEnumConstants());
+        //endregion
+
+        JButton finishButton = new JButton("Speichern");
+        finishButton.addActionListener(new ActionListener(){
+
+            /**
+             * the function that is triggered when the finish button is pressed
+             * @param actionEvent the action event that triggered the function
+             */
+            @Override
+            public void actionPerformed(ActionEvent actionEvent) {
+                //test the input
+                if(nametextField.getText()==null
+                        ||nametextField.getText()==""
+                        || learningDocumentSelection.getSelectedItem()==null){
+                    //if the input is incomplete display an error message
+                    JOptionPane.showMessageDialog(null,"Die Eingabe war unvollständig!",
+                            "Unvollständige Eingabe",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+                try {
+                    //get the information needed for the elaboration creation
+                    String learningDocumentText = (String) learningDocumentSelection.getSelectedItem();
+                    int dividerPosition = learningDocumentText.indexOf("|");
+                    String lectureName = learningDocumentText.substring(0,dividerPosition);
+                    Lecture lecture= db.getLecture(lectureName);
+                    String name = nametextField.getText();
+                    Category category = Category.ELABORATION;
+                    String memLocation = memLocationTextField.getText();
+                    Format format = (Format) formatSelection.getSelectedItem();
+                    String learningDocumentName = learningDocumentText.substring(dividerPosition+1);
+                    LearningDocument learningDocument = lecture.getLearningDocument(learningDocumentName);
+
+                    //create the new elaboration
+                    LearningDocument elaboration = new LearningDocument(name,category,memLocation,format);
+                    
+                    //store the new elaboration
+                    db.addElaboration(lecture, learningDocument, elaboration);
+                    dialog.dispose();
+                    gui.updateTableModel();
+                } catch (Exception e) {
+                    JOptionPane.showMessageDialog(null,"Die Ausarbeitung konnte nicht " +
+                                    "eingetragen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+            }
+        });
+
+        //build the dialog
+        dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+        Container cp = dialog.getContentPane();
+        dialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+        cp.add(learningDocumentLable);
+        cp.add(learningDocumentSelection);
+        cp.add(nameLabel);
+        cp.add(nametextField);
+        cp.add(memLocationLabel);
+        cp.add(memLocationTextField);
+        cp.add(formatLabel);
+        cp.add(formatSelection);
+        cp.add(finishButton);
+
+        //display the dialog
+        dialog.pack();
+        dialog.setLocationRelativeTo(frame);
+        dialog.setVisible(true);
+    }
+}
diff --git a/src/ui/guiDialogs/AddLearningDocumentDialog.java b/src/ui/guiDialogs/AddLearningDocumentDialog.java
new file mode 100755
index 0000000..bd5a376
--- /dev/null
+++ b/src/ui/guiDialogs/AddLearningDocumentDialog.java
@@ -0,0 +1,145 @@
+package ui.guiDialogs;
+
+import storage.*;
+import ui.GUI;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.ArrayList;
+
+/**
+ * the dialog to add a learning document
+ */
+public class AddLearningDocumentDialog{
+    private String title = "Lerndokument hinzufügen...";
+    private JFrame frame;
+    private StorageInterface db;
+
+    /**
+     * the constructor for the dialog
+     * @param gui the main GUI
+     */
+    public AddLearningDocumentDialog(GUI gui){
+        frame = gui.getFrame();
+        db = gui.getDB();
+        final JDialog dialog = new JDialog(frame, title, false);
+
+        //region Lecture Selection
+        JLabel lectureLabel = new JLabel("Wählen Sie eine Lehrveranstaltung aus:");
+        ArrayList<String> lectureNames = new ArrayList();
+        try{
+            for(Lecture l : db.getLectures().values()){
+                lectureNames.add(l.getName());
+            }
+        }catch (Exception e) {
+            JOptionPane.showMessageDialog(null,"Die Lehrveranstaltungen konnten nicht " +
+                            "ausgelesen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                    JOptionPane.WARNING_MESSAGE);
+        }
+        final JComboBox<String> lectureSelection = new JComboBox(lectureNames.toArray());
+        //endregion
+
+        //region Name Selection
+        JLabel nameLabel = new JLabel("Name des Lerndokumentes:");
+        JTextField nametextField = new JTextField(13);
+        //endregion
+
+        //region Category Selection
+        JLabel categoryLabel = new JLabel("Kategorie des Lerndokumentes:");
+        String[] categories = {"Skript", "Übungsblatt","Klausur"};
+        final JComboBox<String> categorySelection = new JComboBox<String>(categories);
+        //endregion
+
+        //region memory Location Selection
+        JLabel memLocationLabel = new JLabel("Speicherstelle des Lerndokumentes:");
+        JTextField memLocationTextField = new JTextField(32);
+        //endregion
+
+        //region Format Selection
+        JLabel formatLabel = new JLabel("Format des Lerndokumentes");
+        final JComboBox<Format> formatSelection = new JComboBox<Format>(Format.class.getEnumConstants());
+        //endregion
+
+        JButton finishButton = new JButton("Speichern");
+        finishButton.addActionListener(new ActionListener(){
+
+            /**
+             * the function triggered by the user when pressing the finish button
+             * @param actionEvent the action event that triggered the function
+             */
+            @Override
+            public void actionPerformed(ActionEvent actionEvent) {
+                //test the input
+                if(nametextField.getText()==null
+                        ||nametextField.getText()==""
+                        ||lectureSelection.getSelectedItem()==null
+                        ||categorySelection.getSelectedItem()==null){
+                    //when the input is incomplete show an error message
+                    JOptionPane.showMessageDialog(null,"Die Eingabe war unvollständig!",
+                            "Unvollständige Eingabe",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+                try {
+                    //get the information needed for the creation of the learning document
+                    Lecture lecture= db.getLecture((String)lectureSelection.getSelectedItem());
+                    String name = nametextField.getText();
+                    Category category = getCategoryFromString((String)categorySelection.getSelectedItem());
+                    String memLocation = memLocationTextField.getText();
+                    Format format = (Format) formatSelection.getSelectedItem();
+
+                    //create the new learning document
+                    LearningDocument learningDocument = new LearningDocument(name,category,memLocation,format);
+                    //store the learning document
+                    db.addLearningDocument(lecture, learningDocument);
+                    dialog.dispose();
+                    gui.updateTableModel();
+                } catch (Exception e) {
+                    JOptionPane.showMessageDialog(null,"Die Lehrveranstaltung konnte nicht " +
+                                    "eingetragen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+            }
+        });
+
+        //build the dialog
+        dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+        Container cp = dialog.getContentPane();
+        dialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+        cp.add(lectureLabel);
+        cp.add(lectureSelection);
+        cp.add(nameLabel);
+        cp.add(nametextField);
+        cp.add(categoryLabel);
+        cp.add(categorySelection);
+        cp.add(memLocationLabel);
+        cp.add(memLocationTextField);
+        cp.add(formatLabel);
+        cp.add(formatSelection);
+        cp.add(finishButton);
+
+        //display the dialog
+        dialog.pack();
+        dialog.setLocationRelativeTo(frame);
+        dialog.setVisible(true);
+    }
+
+    /**
+     * converts a string to a category
+     * @param category the category that is to be converted
+     * @return the resulting String
+     */
+    private Category getCategoryFromString(String category){
+        switch (category){
+            case "Skript":
+                return Category.SCRIPT;
+            case "Übungsblatt":
+                return Category.PRACTICE_SHEET;
+            case "Klausur":
+                return Category.EXAM;
+            default:
+                return null;
+        }
+    }
+}
diff --git a/src/ui/guiDialogs/AddLectureDialog.java b/src/ui/guiDialogs/AddLectureDialog.java
new file mode 100755
index 0000000..060e268
--- /dev/null
+++ b/src/ui/guiDialogs/AddLectureDialog.java
@@ -0,0 +1,72 @@
+package ui.guiDialogs;
+
+import storage.Lecture;
+import storage.StorageInterface;
+import ui.GUI;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+/**
+ * the dialog for adding a new lecture
+ */
+public class AddLectureDialog{
+    private String title = "Lehrveranstaltung hinzufügen...";
+    private JFrame frame;
+    private  StorageInterface db;
+
+    /**
+     * the constructor for the dialog
+     * @param gui the main GUI
+     */
+    public AddLectureDialog(GUI gui){
+        frame = gui.getFrame();
+        db = gui.getDB();
+        //initialize the dialog
+        final JDialog dialog = new JDialog(frame, title,false);
+        JLabel label = new JLabel("Geben Sie den Namen der Lehrveranstaltung an: ");
+        JTextField textField = new JTextField(13);
+        JButton finishButton = new JButton("Speichern");
+        finishButton.addActionListener(new ActionListener(){
+
+            /**
+             * the function that is triggered by the user clicking the finish button
+             * @param actionEvent the action event that triggered the function
+             */
+            @Override
+            public void actionPerformed(ActionEvent actionEvent) {
+                //test the input
+                if(textField.getText()==null||textField.getText()==""){
+                    //if the input is incomplete display an error message
+                    JOptionPane.showMessageDialog(null,"Der Name des Lehrveranstaltung " +
+                                    "darf nicht leer sein!","Name der Lehrveranstaltung fehlt",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+                try {
+                    //store the new lecture
+                    db.addLecture(new Lecture(textField.getText()));
+                    dialog.dispose();
+                    gui.updateTableModel();
+                } catch (Exception e) {
+                    JOptionPane.showMessageDialog(null,"Die Lehrveranstaltung konnte nicht " +
+                                    "eingetragen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+            }
+        });
+        //build the dialog
+        dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+        Container cp = dialog.getContentPane();
+        dialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+        cp.add(label);
+        cp.add(textField);
+        cp.add(finishButton);
+
+        //display the dialog
+        dialog.pack();
+        dialog.setLocationRelativeTo(frame);
+        dialog.setVisible(true);
+    }
+}
diff --git a/src/ui/guiDialogs/AddRatingDialog.java b/src/ui/guiDialogs/AddRatingDialog.java
new file mode 100755
index 0000000..d665ede
--- /dev/null
+++ b/src/ui/guiDialogs/AddRatingDialog.java
@@ -0,0 +1,186 @@
+package ui.guiDialogs;
+
+import storage.LearningDocument;
+import storage.Lecture;
+import storage.Rating;
+import storage.StorageInterface;
+import ui.GUI;
+import ui.eventlistener.ShowListElaborationListener;
+import ui.eventlistener.ShowListLearningDocumentListener;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.time.LocalDate;
+
+/**
+ * the dialog for adding a rating
+ */
+public class AddRatingDialog {
+    private String title = "Bewertung abgeben...";
+    private JFrame frame;
+    private StorageInterface db;
+
+    /**
+     * constructor for adding a rating to an elaboration
+     * @param gui the main GUI
+     * @param lecture the lecture the elaboration belongs to
+     * @param learningDocument the parent document of the elaboration
+     * @param elaboration the elaboration
+     * @param showListElaborationListener the list elaboration listener that calls for this dialog
+     */
+    public AddRatingDialog(GUI gui, Lecture lecture, LearningDocument learningDocument, LearningDocument elaboration,
+                           ShowListElaborationListener showListElaborationListener){
+        frame = gui.getFrame();
+        db = gui.getDB();
+
+        //gets the rating dialog
+        RatingDialog dialog = new RatingDialog();
+        //add the action listener to the finish button in the rating dialog
+        dialog.finishButton.addActionListener(new ActionListener() {
+            /**
+             * the function that is triggered by the the user clicking the finish button
+             * @param actionEvent the action event that triggered the function
+             */
+            @Override
+            public void actionPerformed(ActionEvent actionEvent) {
+                //create a new rating
+                Rating rating = new Rating(dialog.getComment(), System.getProperty("user.name"), dialog.getRating());
+                try{
+                    //store the rating
+                    db.addRating(lecture, learningDocument, elaboration,rating);
+                    dialog.dispose();
+                    gui.updateTableModel();
+                    showListElaborationListener.updateTableModel(lecture);
+                }catch (Exception e) {
+                    JOptionPane.showMessageDialog(null,"Die Bewertung konnte nicht " +
+                                    "eingetragen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+            }
+        });
+    }
+
+    /**
+     * the constructor for adding a rating to a learning document
+     * @param gui the main GUI
+     * @param lecture the lecture the learning document belongs to
+     * @param learningDocument the learning document the rating is added to
+     * @param showListLearningDocumentListener the list learning document listener that calls for the dialog
+     */
+    public AddRatingDialog(GUI gui, Lecture lecture, LearningDocument learningDocument,
+                           ShowListLearningDocumentListener showListLearningDocumentListener){
+        frame = gui.getFrame();
+        db = gui.getDB();
+
+        //get the rating dialog
+        RatingDialog dialog = new RatingDialog();
+        //add an action listener to the finish button of the rating dialog
+        dialog.finishButton.addActionListener(new ActionListener() {
+            /**
+             * the function that is triggered by the user clicking the finish button
+             * @param actionEvent the action event that triggered the function
+             */
+            @Override
+            public void actionPerformed(ActionEvent actionEvent) {
+                //create the rating
+                Rating rating = new Rating(dialog.getComment(), System.getProperty("user.name"), dialog.getRating());
+                //store the rating
+                try{
+                    db.addRating(lecture, learningDocument,rating);
+                    dialog.dispose();
+                    gui.updateTableModel();
+                    showListLearningDocumentListener.updateTableModel(lecture);
+                }catch (Exception e) {
+                    JOptionPane.showMessageDialog(null,"Die Bewertung konnte nicht " +
+                                    "eingetragen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+            }
+        });
+    }
+
+    /**
+     * the dialog that is mutual to a rating for an elaboration and a learning document
+     */
+    private class RatingDialog
+    {
+        private JDialog dialog;
+        private JButton finishButton;
+        private JComboBox<String> ratingComboBox;
+        private JTextArea commentTextArea;
+
+        /**
+         * the constructor for the dialog
+         */
+        public RatingDialog(){
+            //initialize a the dialog
+            dialog = new JDialog(frame, title, false);
+
+            //region rating selection
+            JLabel ratingLabel = new JLabel("Geben Sie eine Bewertung ab:");
+            String[] possibleRatings = {"★☆☆☆☆","★★☆☆☆","★★★☆☆","★★★★☆","★★★★★"};
+            ratingComboBox = new JComboBox(possibleRatings);
+            //endregion
+
+            //region comment section
+            JLabel commentLabel = new JLabel("Kommentar:");
+            commentTextArea = new JTextArea(8,13);
+            //endregion
+
+            //finish button
+            finishButton = new JButton("Bewertung abgeben");
+
+            //build dialog
+            dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+            Container cp = dialog.getContentPane();
+            dialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+            cp.add(ratingLabel);
+            cp.add(ratingComboBox);
+            cp.add(commentLabel);
+            cp.add(commentTextArea);
+            cp.add(finishButton);
+
+            //display the dialog
+            dialog.pack();
+            dialog.setLocationRelativeTo(frame);
+            dialog.setVisible(true);
+        }
+
+        /**
+         * @return the selected rating as an Integer
+         */
+        private int getRating(){
+            String selectedRating= (String)ratingComboBox.getSelectedItem();
+            switch (selectedRating){
+                case "★☆☆☆☆":
+                    return 1;
+                case "★★☆☆☆":
+                    return 2;
+                case "★★★☆☆":
+                    return 3;
+                case "★★★★☆":
+                    return 4;
+                case "★★★★★":
+                    return 5;
+                default:
+                    return 0;
+            }
+        }
+
+        /**
+         * @return the comment as String
+         */
+        private String getComment(){
+            return commentTextArea.getText();
+        }
+
+        /**
+         * disposes the dialog
+         */
+        private void dispose(){
+            dialog.dispose();
+        }
+    }
+}
diff --git a/src/ui/guiDialogs/EditElaborationDialog.java b/src/ui/guiDialogs/EditElaborationDialog.java
new file mode 100755
index 0000000..5b9daf2
--- /dev/null
+++ b/src/ui/guiDialogs/EditElaborationDialog.java
@@ -0,0 +1,137 @@
+package ui.guiDialogs;
+
+import storage.*;
+import ui.GUI;
+import ui.eventlistener.ShowListElaborationListener;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.ArrayList;
+
+/**
+ * the dialog for editing the elaboration
+ */
+public class EditElaborationDialog {
+    private String title = "Ausarbeitung bearbeiten...";
+    private JFrame frame;
+    private StorageInterface db;
+
+
+    /**
+     * the constructor for the dialog
+     * @param gui the main GUI
+     * @param lecture the lecture the elaboration belongs to
+     * @param learningDocument the parent document of the elaboration
+     * @param elaboration the elaboration
+     * @param showListElaborationListener the list elaboration listener requesting the dialog
+     */
+    public EditElaborationDialog(GUI gui, Lecture lecture, LearningDocument learningDocument, LearningDocument elaboration,
+                            ShowListElaborationListener showListElaborationListener){
+        frame = gui.getFrame();
+        db = gui.getDB();
+        final JDialog dialog = new JDialog(frame, title, false);
+
+        //region Learning Document Selection
+        JLabel learningDocumentLable = new JLabel("Wählen Sie ein Lerndokument aus:");
+        ArrayList<String> learningDocumentsNames = new ArrayList<>();
+        try{
+            for(Lecture l : db.getLectures().values()){
+                for(LearningDocument ld : l.getLearningDocuments().values()){
+                    learningDocumentsNames.add(l.getName() + "|" + ld.getName());
+                }
+            }
+        }catch (Exception e) {
+            JOptionPane.showMessageDialog(null,"Die Lerndokumente konnten nicht " +
+                            "ausgelesen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                    JOptionPane.WARNING_MESSAGE);
+        }
+        final JComboBox<String> learningDocumentSelection = new JComboBox(learningDocumentsNames.toArray());
+        learningDocumentSelection.setSelectedItem((lecture.getName()+"|"+learningDocument.getName()));
+        //endregion
+
+        //region Name Selection
+        JLabel nameLabel = new JLabel("Name der Ausarbeitung:");
+        JTextField nameTextField = new JTextField(13);
+        nameTextField.setText(elaboration.getName());
+        //endregion
+
+        //region memory Location Selection
+        JLabel memLocationLabel = new JLabel("Speicherstelle der Ausarbeitung:");
+        JTextField memLocationTextField = new JTextField(32);
+        memLocationTextField.setText(elaboration.getMemLocation());
+        //endregion
+
+        //region Format Selection
+        JLabel formatLabel = new JLabel("Format der Ausarbeitung");
+        final JComboBox<Format> formatSelection = new JComboBox(Format.class.getEnumConstants());
+        formatSelection.setSelectedItem(elaboration.getFormat());
+        //endregion
+
+        JButton finishButton = new JButton("Speichern");
+        finishButton.addActionListener(new ActionListener(){
+
+            /**
+             * the function that is triggered when the user clicks the finish button
+             * @param actionEvent the action event that triggered the function
+             */
+            @Override
+            public void actionPerformed(ActionEvent actionEvent) {
+                //test the input
+                if(nameTextField.getText()==null
+                        ||nameTextField.getText()==""
+                        || learningDocumentSelection.getSelectedItem()==null){
+                    //if the input is incomplete display an error message
+                    JOptionPane.showMessageDialog(null,"Die Eingabe war unvollständig!",
+                            "Unvollständige Eingabe",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+                try {
+                    //get the information needed to modify the elaboration
+                    String learningDocumentText = (String) learningDocumentSelection.getSelectedItem();
+                    int dividerPosition = learningDocumentText.indexOf("|");
+                    String lectureName = learningDocumentText.substring(0,dividerPosition);
+                    Lecture l= db.getLecture(lectureName);
+                    String name = nameTextField.getText();
+                    Category category = Category.ELABORATION;
+                    String memLocation = memLocationTextField.getText();
+                    Format format = (Format) formatSelection.getSelectedItem();
+                    String learningDocumentName = learningDocumentText.substring(dividerPosition+1);
+                    LearningDocument ld = lecture.getLearningDocument(learningDocumentName);
+                    LearningDocument el = new LearningDocument(name,category,memLocation,format);
+                    //remove the old elaboration
+                    db.deleteElaboration(lecture,learningDocument,elaboration);
+                    //store the modified elaboration
+                    db.addElaboration(l, ld, el);
+                    dialog.dispose();
+                    gui.updateTableModel();
+                    showListElaborationListener.updateTableModel(lecture);
+                } catch (Exception e) {
+                    JOptionPane.showMessageDialog(null,"Die Ausarbeitung konnte nicht " +
+                                    "eingetragen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+            }
+        });
+
+        //build the dialog
+        dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+        Container cp = dialog.getContentPane();
+        dialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+        cp.add(learningDocumentLable);
+        cp.add(learningDocumentSelection);
+        cp.add(nameLabel);
+        cp.add(nameTextField);
+        cp.add(memLocationLabel);
+        cp.add(memLocationTextField);
+        cp.add(formatLabel);
+        cp.add(formatSelection);
+        cp.add(finishButton);
+
+        //display the dialog
+        dialog.pack();
+        dialog.setLocationRelativeTo(frame);
+        dialog.setVisible(true);
+    }
+}
diff --git a/src/ui/guiDialogs/EditLearningDocumentDialog.java b/src/ui/guiDialogs/EditLearningDocumentDialog.java
new file mode 100755
index 0000000..22f9737
--- /dev/null
+++ b/src/ui/guiDialogs/EditLearningDocumentDialog.java
@@ -0,0 +1,176 @@
+package ui.guiDialogs;
+
+import storage.*;
+import ui.GUI;
+import ui.eventlistener.ShowListLearningDocumentListener;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.ArrayList;
+
+/**
+ * the dialog for editing a learning document
+ */
+public class EditLearningDocumentDialog{
+    private String title = "Lehrndokument bearbeiten...";
+    private JFrame frame;
+    private StorageInterface db;
+
+    /**
+     * the constructor for the dialog
+     * @param gui the main GUI
+     * @param lecture the lecture the learning document belongs to
+     * @param learningDocument the learning document
+     * @param showListLearningDocumentListener the listener requesting the dialog
+     */
+    public EditLearningDocumentDialog(GUI gui, Lecture lecture, LearningDocument learningDocument,
+                            ShowListLearningDocumentListener showListLearningDocumentListener){
+        frame = gui.getFrame();
+        db = gui.getDB();
+
+        //initialize the dialog
+        final JDialog dialog = new JDialog(frame, title, false);
+
+        //region Lecture Selection
+        JLabel lectureLabel = new JLabel("Lehrveranstaltung:");
+        ArrayList<String> lectureNames = new ArrayList();
+        try{
+            for(Lecture l : db.getLectures().values()){
+                lectureNames.add(l.getName());
+            }
+        }catch (Exception e) {
+            JOptionPane.showMessageDialog(null,"Die Lehrveranstaltungen konnten nicht " +
+                            "ausgelesen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                    JOptionPane.WARNING_MESSAGE);
+        }
+        final JComboBox<String> lectureSelection = new JComboBox(lectureNames.toArray());
+        lectureSelection.setSelectedItem(lecture.getName());
+        //endregion
+
+        //region Name Selection
+        JLabel nameLabel = new JLabel("Name des Lerndokumentes:");
+        JTextField nameTextField = new JTextField(13);
+        nameTextField.setText(learningDocument.getName());
+        //endregion
+
+        //region Category Selection
+        JLabel categoryLabel = new JLabel("Kategorie des Lerndokumentes:");
+        String[] categories = {"Skript", "Übungsblatt","Klausur"};
+        final JComboBox<String> categorySelection = new JComboBox<String>(categories);
+        categorySelection.setSelectedItem(getStringFromCategory(learningDocument.getCategory()));
+        //endregion
+
+        //region memory Location Selection
+        JLabel memLocationLabel = new JLabel("Speicherstelle des Lerndokumentes:");
+        JTextField memLocationTextField = new JTextField(32);
+        memLocationTextField.setText(learningDocument.getMemLocation());
+        //endregion
+
+        //region Format Selection
+        JLabel formatLabel = new JLabel("Format des Lerndokumentes");
+        final JComboBox<Format> formatSelection = new JComboBox<Format>(Format.class.getEnumConstants());
+        formatSelection.setSelectedItem(learningDocument.getFormat());
+        //endregion
+
+        JButton finishButton = new JButton("Speichern");
+        finishButton.addActionListener(new ActionListener(){
+
+            /**
+             * the function that is triggered when the user clicks the finish button
+             * @param actionEvent the action event that triggered the function
+             */
+            @Override
+            public void actionPerformed(ActionEvent actionEvent) {
+                //input check
+                if(nameTextField.getText()==null
+                        ||nameTextField.getText()==""
+                        ||lectureSelection.getSelectedItem()==null
+                        ||categorySelection.getSelectedItem()==null){
+                    //if the input is incomplete display an error message
+                    JOptionPane.showMessageDialog(null,"Die Eingabe war unvollständig!",
+                            "Unvollständige Eingabe",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+                try {
+                    //get the information needed for modifying the learning document
+                    Lecture l= db.getLecture((String)lectureSelection.getSelectedItem());
+                    String name = nameTextField.getText();
+                    Category category = getCategoryFromString((String)categorySelection.getSelectedItem());
+                    String memLocation = memLocationTextField.getText();
+                    Format format = (Format) formatSelection.getSelectedItem();
+                    LearningDocument lDocument = new LearningDocument(name,category,memLocation,format);
+                    //delete the old learning document
+                    db.deleteLearningDocument(lecture, learningDocument);
+                    //store the modified learning document
+                    db.addLearningDocument(l, lDocument);
+                    dialog.dispose();
+                    gui.updateTableModel();
+                    showListLearningDocumentListener.updateTableModel(lecture);
+                } catch (Exception e) {
+                    JOptionPane.showMessageDialog(null,"Die Lehrveranstaltung konnte nicht " +
+                                    "eingetragen werden!\n - " + e, "Aufruf fehlgeschlagen",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+            }
+        });
+
+        //build the dialog
+        dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+        Container cp = dialog.getContentPane();
+        dialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+        cp.add(lectureLabel);
+        cp.add(lectureSelection);
+        cp.add(nameLabel);
+        cp.add(nameTextField);
+        cp.add(categoryLabel);
+        cp.add(categorySelection);
+        cp.add(memLocationLabel);
+        cp.add(memLocationTextField);
+        cp.add(formatLabel);
+        cp.add(formatSelection);
+        cp.add(finishButton);
+
+        //display the dialog
+        dialog.pack();
+        dialog.setLocationRelativeTo(frame);
+        dialog.setVisible(true);
+    }
+
+    /**
+     * converts the category from a String
+     * @param category the String
+     * @return the converted category
+     */
+    private Category getCategoryFromString(String category){
+        switch (category){
+            case "Skript":
+                return Category.SCRIPT;
+            case "Übungsblatt":
+                return Category.PRACTICE_SHEET;
+            case "Klausur":
+                return Category.EXAM;
+            default:
+                return null;
+        }
+    }
+
+    /**
+     * converts a category to a String
+     * @param category the category
+     * @return the converted String
+     */
+    private String getStringFromCategory(Category category){
+        switch (category){
+            case SCRIPT:
+                return "Skript";
+            case PRACTICE_SHEET:
+                return "Übungsblatt";
+            case EXAM:
+                return "Klausur";
+            default:
+                return null;
+        }
+    }
+}
diff --git a/src/ui/guiDialogs/EditLectureDialog.java b/src/ui/guiDialogs/EditLectureDialog.java
new file mode 100755
index 0000000..d2bd22d
--- /dev/null
+++ b/src/ui/guiDialogs/EditLectureDialog.java
@@ -0,0 +1,76 @@
+package ui.guiDialogs;
+
+import storage.Lecture;
+import storage.StorageInterface;
+import ui.GUI;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+/**
+ * the dialog for editing a lecture
+ */
+public class EditLectureDialog {
+    private String title = "Lehrveranstaltung bearbeiten";
+    private JFrame frame;
+    private StorageInterface db;
+
+    /**
+     * the constructor for the dialog
+     * @param gui the main GUI
+     * @param lecture the lecture to be edited
+     */
+    public EditLectureDialog(GUI gui, Lecture lecture){
+        frame = gui.getFrame();
+        db = gui.getDB();
+
+        //initialize the dialog
+        final JDialog dialog = new JDialog(frame, title,false);
+        JLabel label = new JLabel("Namen der Lehrveranstaltung an: ");
+        JTextField textField = new JTextField(13);
+        textField.setText(lecture.getName());
+        JButton finishButton = new JButton("Speichern");
+        finishButton.addActionListener(new ActionListener(){
+            /**
+             * the function that is triggered when the user clicks the finish button
+             * @param actionEvent the action event that triggered the function
+             */
+            @Override
+            public void actionPerformed(ActionEvent actionEvent) {
+                //input check
+                if(textField.getText()==null||textField.getText()==""){
+                    //in case of invalid input display an error message
+                    JOptionPane.showMessageDialog(null,"Der Name des Lehrveranstaltung " +
+                                    "darf nicht leer sein!","Name der Lehrveranstaltung fehlt",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+                try {
+                    //delete the old lecture
+                    db.deleteLecture(lecture);
+                    //add the modified lecture
+                    db.addLecture(new Lecture(textField.getText()));
+                    dialog.dispose();
+                    gui.updateTableModel();
+                } catch (Exception e) {
+                    JOptionPane.showMessageDialog(null,"Die Lehrveranstaltung konnte nicht " +
+                                    "geändert werden!\n - " + e, "Aufruf fehlgeschlagen",
+                            JOptionPane.WARNING_MESSAGE);
+                }
+            }
+        });
+        //build the dialog
+        dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+        Container cp = dialog.getContentPane();
+        dialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+        cp.add(label);
+        cp.add(textField);
+        cp.add(finishButton);
+
+        //display the dialog
+        dialog.pack();
+        dialog.setLocationRelativeTo(frame);
+        dialog.setVisible(true);
+    }
+}
diff --git a/src/ui/guiDialogs/ViewRatingDialog.java b/src/ui/guiDialogs/ViewRatingDialog.java
new file mode 100755
index 0000000..11c001f
--- /dev/null
+++ b/src/ui/guiDialogs/ViewRatingDialog.java
@@ -0,0 +1,72 @@
+package ui.guiDialogs;
+
+import storage.Rating;
+import storage.StorageInterface;
+import ui.GUI;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+/**
+ * the dialog to view a rating
+ */
+public class ViewRatingDialog {
+    private JFrame frame;
+    private StorageInterface db;
+
+    /**
+     * the constructor for the dialog
+     * @param gui main GUI
+     * @param rating the requested rating
+     */
+    public ViewRatingDialog(GUI gui, Rating rating){
+        frame = gui.getFrame();
+        db = gui.getDB();
+
+        //initialize dialog
+        final JDialog dialog = new JDialog(frame, "Detailansicht Bewertung", false);
+        dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+        //Rating meta data
+        JLabel ratingLabel = new JLabel(ratingToStars(rating.getRating()) + "    |    " + rating.getUsername() +
+                "    |    " + rating.getDate());
+        //rating text
+        JTextArea commentTextArea = new JTextArea(8,13);
+        commentTextArea.setText(rating.getRatingText());
+        commentTextArea.setEditable(false);
+
+        //build dialog
+        Container cp = dialog.getContentPane();
+        dialog.setLayout(new BoxLayout(cp, BoxLayout.PAGE_AXIS));
+        cp.add(ratingLabel);
+        cp.add(commentTextArea);
+
+        //display dialog
+        dialog.pack();
+        dialog.setLocationRelativeTo(frame);
+        dialog.setVisible(true);
+    }
+
+    /**
+     * converts rating value to a String of stars
+     * @param rating the rating value
+     * @return the String of stars
+     */
+    private String ratingToStars(int rating){
+        switch (rating){
+            case 1:
+                return "★☆☆☆☆";
+            case 2:
+                return "★★☆☆☆";
+            case 3:
+                return "★★★☆☆";
+            case 4:
+                return "★★★★☆";
+            case 5:
+                return "★★★★★";
+            default:
+                return "☆☆☆☆☆";
+        }
+    }
+}
diff --git a/src/ui/guimenus/EditMenu.java b/src/ui/guimenus/EditMenu.java
new file mode 100755
index 0000000..9df4230
--- /dev/null
+++ b/src/ui/guimenus/EditMenu.java
@@ -0,0 +1,18 @@
+package ui.guimenus;
+
+public enum EditMenu {
+    CUT("Ausschneiden"),
+    COPY("Kopieren"),
+    PASTE("Einfügen");
+
+    private final String menuItem;
+
+    EditMenu(String menuItem){
+        this.menuItem = menuItem;
+    }
+
+    @Override
+    public String toString() {
+        return menuItem;
+    }
+}
diff --git a/src/ui/guimenus/HelpMenu.java b/src/ui/guimenus/HelpMenu.java
new file mode 100755
index 0000000..d9e5222
--- /dev/null
+++ b/src/ui/guimenus/HelpMenu.java
@@ -0,0 +1,16 @@
+package ui.guimenus;
+
+public enum HelpMenu {
+    INFO("Info");
+
+    private final String menuItem;
+
+    HelpMenu(String menuItem){
+        this.menuItem = menuItem;
+    }
+
+    @Override
+    public String toString() {
+        return menuItem;
+    }
+}
diff --git a/src/ui/guimenus/JTableMenus.java b/src/ui/guimenus/JTableMenus.java
new file mode 100755
index 0000000..e2d2939
--- /dev/null
+++ b/src/ui/guimenus/JTableMenus.java
@@ -0,0 +1,24 @@
+package ui.guimenus;
+
+import javax.swing.*;
+
+public enum JTableMenus {
+    EDIT("Bearbeiten"),
+    REGISTER("Erfassen"),
+    HELP("Hilfe");
+
+    private final String menuName;
+
+    JTableMenus(String menuName){
+        this.menuName = menuName;
+    }
+
+    @Override
+    public String toString() {
+        return menuName;
+    }
+
+    public JMenu createMenu(){
+        return new JMenu( menuName );
+    }
+}
\ No newline at end of file
diff --git a/src/ui/guimenus/RegisterMenu.java b/src/ui/guimenus/RegisterMenu.java
new file mode 100755
index 0000000..a3492e5
--- /dev/null
+++ b/src/ui/guimenus/RegisterMenu.java
@@ -0,0 +1,27 @@
+package ui.guimenus;
+
+import javax.swing.*;
+import java.awt.event.ActionListener;
+
+public enum RegisterMenu {
+    ADD_LECTURE("neue Lehrveranstaltung"),
+    ADD_LEARNING_DOCUMENT("neues Lerndokument"),
+    ADD_ELABORATION("neue Ausarbeitung");
+
+    private final String menuItem;
+
+    RegisterMenu(String menuItem){
+        this.menuItem = menuItem;
+    }
+
+    @Override
+    public String toString() {
+        return menuItem;
+    }
+
+    public JMenuItem createMenuItemWithListener(ActionListener actionListener){
+        JMenuItem mItem = new JMenuItem(menuItem);
+        mItem.addActionListener(actionListener);
+        return mItem;
+    }
+}