diff --git a/Projekte/mdga/client/src/main/java/pp/mdga/client/ActionSynchronizer.java b/Projekte/mdga/client/src/main/java/pp/mdga/client/ActionSynchronizer.java
deleted file mode 100644
index 977969b2..00000000
--- a/Projekte/mdga/client/src/main/java/pp/mdga/client/ActionSynchronizer.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package pp.mdga.client;
-
-public class ActionSynchronizer {
-
-}
diff --git a/Projekte/mdga/client/src/main/java/pp/mdga/client/NotificationSynchronizer.java b/Projekte/mdga/client/src/main/java/pp/mdga/client/NotificationSynchronizer.java
new file mode 100644
index 00000000..23fdccdd
--- /dev/null
+++ b/Projekte/mdga/client/src/main/java/pp/mdga/client/NotificationSynchronizer.java
@@ -0,0 +1,7 @@
+package pp.mdga.client;
+
+import pp.mdga.notification.Notification;
+
+public class NotificationSynchronizer {
+
+}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/effect/Effect.java b/Projekte/mdga/model/src/main/java/pp.mdga/effect/Effect.java
deleted file mode 100644
index 7a4168b1..00000000
--- a/Projekte/mdga/model/src/main/java/pp.mdga/effect/Effect.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package pp.mdga.effect;
-
-public interface Effect {
-}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/notification/ActivePlayerNotification.java b/Projekte/mdga/model/src/main/java/pp.mdga/notification/ActivePlayerNotification.java
new file mode 100644
index 00000000..a19531e3
--- /dev/null
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/notification/ActivePlayerNotification.java
@@ -0,0 +1,4 @@
+package pp.mdga.notification;
+
+public class ActivePlayerNotification {
+}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/notification/DrawCardNotification.java b/Projekte/mdga/model/src/main/java/pp.mdga/notification/DrawCardNotification.java
new file mode 100644
index 00000000..5130a82f
--- /dev/null
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/notification/DrawCardNotification.java
@@ -0,0 +1,4 @@
+package pp.mdga.notification;
+
+public class DrawCardNotification {
+}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/notification/InterruptNotification.java b/Projekte/mdga/model/src/main/java/pp.mdga/notification/InterruptNotification.java
new file mode 100644
index 00000000..c165bafa
--- /dev/null
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/notification/InterruptNotification.java
@@ -0,0 +1,4 @@
+package pp.mdga.notification;
+
+public class InterruptNotification {
+}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/notification/MovePieceNotification.java b/Projekte/mdga/model/src/main/java/pp.mdga/notification/MovePieceNotification.java
new file mode 100644
index 00000000..c4a6b4b3
--- /dev/null
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/notification/MovePieceNotification.java
@@ -0,0 +1,4 @@
+package pp.mdga.notification;
+
+public class MovePieceNotification {
+}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/notification/Notification.java b/Projekte/mdga/model/src/main/java/pp.mdga/notification/Notification.java
new file mode 100644
index 00000000..5e848918
--- /dev/null
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/notification/Notification.java
@@ -0,0 +1,4 @@
+package pp.mdga.notification;
+
+public interface Notification {
+}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/notification/PlayCardNotification.java b/Projekte/mdga/model/src/main/java/pp.mdga/notification/PlayCardNotification.java
new file mode 100644
index 00000000..477384bf
--- /dev/null
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/notification/PlayCardNotification.java
@@ -0,0 +1,4 @@
+package pp.mdga.notification;
+
+public class PlayCardNotification {
+}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/notification/ResumeNotification.java b/Projekte/mdga/model/src/main/java/pp.mdga/notification/ResumeNotification.java
new file mode 100644
index 00000000..83c2fc47
--- /dev/null
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/notification/ResumeNotification.java
@@ -0,0 +1,4 @@
+package pp.mdga.notification;
+
+public class ResumeNotification {
+}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/notification/RollDiceNotification.java b/Projekte/mdga/model/src/main/java/pp.mdga/notification/RollDiceNotification.java
new file mode 100644
index 00000000..b975a9d9
--- /dev/null
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/notification/RollDiceNotification.java
@@ -0,0 +1,4 @@
+package pp.mdga.notification;
+
+public class RollDiceNotification {
+}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/notification/SwapPieceNotification.java b/Projekte/mdga/model/src/main/java/pp.mdga/notification/SwapPieceNotification.java
new file mode 100644
index 00000000..04b713ce
--- /dev/null
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/notification/SwapPieceNotification.java
@@ -0,0 +1,4 @@
+package pp.mdga.notification;
+
+public class SwapPieceNotification {
+}