diff --git a/APED/app/src/main/java/com/example/aped/utils/Favorites.java b/APED/app/src/main/java/com/example/aped/utils/Favorites.java
new file mode 100644
index 0000000..77e8537
--- /dev/null
+++ b/APED/app/src/main/java/com/example/aped/utils/Favorites.java
@@ -0,0 +1,21 @@
+package com.example.aped.utils;
+
+import java.util.List;
+
+public class Favorites implements IFAVORITES{
+
+    @Override
+    public List<String> getFavorites() {
+        return null;
+    }
+
+    @Override
+    public String addFavorite(String deviceName) {
+        return null;
+    }
+
+    @Override
+    public String removeFavorite(String deviceName) {
+        return null;
+    }
+}
diff --git a/APED/app/src/main/java/com/example/aped/utils/IFAVORITES.java b/APED/app/src/main/java/com/example/aped/utils/IFAVORITES.java
new file mode 100644
index 0000000..e013a14
--- /dev/null
+++ b/APED/app/src/main/java/com/example/aped/utils/IFAVORITES.java
@@ -0,0 +1,9 @@
+package com.example.aped.utils;
+
+import java.util.List;
+
+public interface IFAVORITES {
+    List<String> getFavorites();
+    String addFavorite(String deviceName);
+    String removeFavorite(String deviceName);
+}