diff --git a/APED/app/src/main/java/com/example/aped/communication/IIO.java b/APED/app/src/main/java/com/example/aped/communication/IIO.java
index c327685..7b178a3 100644
--- a/APED/app/src/main/java/com/example/aped/communication/IIO.java
+++ b/APED/app/src/main/java/com/example/aped/communication/IIO.java
@@ -1,16 +1,8 @@
 package com.example.aped.communication;
 
 public interface IIO {
-    /**
-     *
-     * @return Einlesewerte in Array
-     */
-    String[][] rueckgabeAI();
 
-    /**
-     *
-     * @return Einlesewerte in Array
-     */
-    String rueckgabeDI();
-    //DO (int);
+    public Object read(String deviceName);
+
+    public Object write(String deviceName, Object value);
 }
diff --git a/APED/app/src/main/java/com/example/aped/communication/TestIO.java b/APED/app/src/main/java/com/example/aped/communication/TestIO.java
index 8c4acba..3ddfc0c 100644
--- a/APED/app/src/main/java/com/example/aped/communication/TestIO.java
+++ b/APED/app/src/main/java/com/example/aped/communication/TestIO.java
@@ -1,28 +1,14 @@
 package com.example.aped.communication;
 
 public class TestIO implements IIO {
-    /** Test Klasse.*/
+
     @Override
-    public String[][] rueckgabeAI() {
-       String[][] AI = new String[3][3];
-       /** AI[0][0]="Test";
-        AI[1][1]="5.658";
-        AI[1][2]="Volt";
-
-        AI[1][0]="Test2";
-        AI[1][1]="10";
-        AI[1][2]="Ohm";
-
-        AI[2][0]="Test3";
-        AI[2][1]="9.88";
-        AI[2][2]="Ampere";
-
-        AI[3][0]="END";*/
-        return AI;
+    public Object read(String deviceName) {
+        return new String("test");
     }
-    /** Test Klasse.*/
+
     @Override
-    public String rueckgabeDI() {
-        return null;
+    public Object write(String deviceName, Object value) {
+        return value;
     }
 }