diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ActivePlayer.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ActivePlayer.java
index e7c35daa..6127acff 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ActivePlayer.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ActivePlayer.java
@@ -1,30 +1,63 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
 import pp.mdga.game.Color;
 
+/**
+ * A message sent by the server to inform the clients about the active player.
+ */
+@Serializable
 public class ActivePlayer extends ServerMessage {
 
-    private Color color;
+    /**
+     * The color of the active player.
+     */
+    private final Color color;
 
-    /** Constructor for ActivePlayer
+    /**
+     * Constructor for ActivePlayer
+     *
      * @param color the color of the active player
      */
     public ActivePlayer(Color color) {
+        super();
         this.color = color;
     }
 
-    /** Getter for the color of the active player
+    /**
+     * Getter for the color of the active player
+     *
      * @return the color of the active player
      */
     public Color getColor() {
         return color;
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "ActivePlayer{color=" + color + '}';
+    }
+
+    /**
+     * Returns the key for the informational text associated with this message.
+     *
+     * @return the key for the informational text
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/AnyPiece.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/AnyPiece.java
index 42e3cec6..eaf69c6d 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/AnyPiece.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/AnyPiece.java
@@ -1,36 +1,71 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
+
 import java.util.ArrayList;
+import java.util.List;
 
+/**
+ * A message sent by the server to the active player containing a list of pieces that the player can move any piece of the list on the board.
+ */
+@Serializable
 public class AnyPiece extends ServerMessage {
+    /**
+     * The list of pieces
+     */
+    private final ArrayList<String> piece;
 
-    private ArrayList<String> piece;
-
-    /** Constructor for AnyPiece
+    /**
+     * Constructor for AnyPiece
      */
     public AnyPiece() {
+        super();
         piece = new ArrayList<>();
     }
 
-    /** Add a piece to the list of pieces
+    /**
+     * Add a piece to the list of pieces
+     *
      * @param piece the piece to add
      */
     public void addPiece(String piece) {
         this.piece.add(piece);
     }
 
-    /** Getter for the list of pieces
+    /**
+     * Getter for the list of pieces
+     *
      * @return the list of pieces
      */
-    public ArrayList<String> getPiece() {
+    public List<String> getPiece() {
         return piece;
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "AnyPiece{piece=" + piece + '}';
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Briefing.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Briefing.java
index db89d408..86942872 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Briefing.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Briefing.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class Briefing extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to the reconnected player to provide a briefing about the current game state.
+ */
+@Serializable
+public class Briefing extends ServerMessage {
+    /**
+     * Constructs a new Briefing instance.
+     */
+    public Briefing() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Ceremony.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Ceremony.java
index 8a13db46..3bff739c 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Ceremony.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Ceremony.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class Ceremony extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to indicate the beginning of the ceremony.
+ */
+@Serializable
+public class Ceremony extends ServerMessage {
+    /**
+     * Constructs a new Ceremony instance.
+     */
+    public Ceremony() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Dice.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Dice.java
index 7330505f..255a81b5 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Dice.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/Dice.java
@@ -1,22 +1,39 @@
 package pp.mdga.message.server;
 
-import java.util.ArrayList;
+import com.jme3.network.serializing.Serializable;
 
+import java.util.List;
+
+/**
+ * A message sent by the server to the client to inform about the dice roll.
+ */
+@Serializable
 public class Dice extends ServerMessage {
-
+    /**
+     * The eye of the dice
+     */
     private final int diceEye;
-    private final ArrayList<String> moveablePieces;
 
-    /** Constructor for Dice
-     * @param diceEye the eye of the dice
+    /**
+     * The pieces that can be moved
+     */
+    private final List<String> moveablePieces;
+
+    /**
+     * Constructor for Dice
+     *
+     * @param diceEye        the eye of the dice
      * @param moveablePieces the pieces that can be moved
      */
-    public Dice(int diceEye, ArrayList<String> moveablePieces) {
+    public Dice(int diceEye, List<String> moveablePieces) {
+        super();
         this.diceEye = diceEye;
         this.moveablePieces = moveablePieces;
     }
 
-    /** Constructor for inactivePlayer
+    /**
+     * Constructor for inactivePlayer
+     *
      * @param diceEye the eye of the dice
      * @return a new Dice object
      */
@@ -24,34 +41,60 @@ public static Dice inactivePlayer(int diceEye) {
         return new Dice(diceEye, null);
     }
 
-    /** Constructor for activePlayer
-     * @param diceEye the eye of the dice
+    /**
+     * Constructor for activePlayer
+     *
+     * @param diceEye        the eye of the dice
      * @param moveablePieces the pieces that can be moved
      * @return a new Dice object
      */
-    public static Dice activePlayer(int diceEye, ArrayList<String> moveablePieces) {
+    public static Dice activePlayer(int diceEye, List<String> moveablePieces) {
         return new Dice(diceEye, moveablePieces);
     }
 
-    /** Getter for the eye of the dice
+    /**
+     * Getter for the eye of the dice
+     *
      * @return the eye of the dice
      */
     public int getDiceEye() {
         return diceEye;
     }
 
-    /** Getter for the pieces that can be moved
+    /**
+     * Getter for the pieces that can be moved
+     *
      * @return the pieces that can be moved
      */
-    public ArrayList<String> getMoveablePieces() {
+    public List<String> getMoveablePieces() {
         return moveablePieces;
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/DiceAgain.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/DiceAgain.java
index ee1798ee..c3402946 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/DiceAgain.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/DiceAgain.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class DiceAgain extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to the active player to indicate that they can roll the dice again.
+ */
+@Serializable
+public class DiceAgain extends ServerMessage {
+    /**
+     * Constructs a new DiceAgain instance.
+     */
+    public DiceAgain() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/DiceNow.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/DiceNow.java
index 3a87ca60..b72f22a7 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/DiceNow.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/DiceNow.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class DiceNow extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to the active player to enable the dice now button.
+ */
+@Serializable
+public class DiceNow extends ServerMessage {
+    /**
+     * Constructs a new DiceNow instance.
+     */
+    public DiceNow() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/EndOfTurn.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/EndOfTurn.java
index 62c33df2..d9ac9cb0 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/EndOfTurn.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/EndOfTurn.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class EndOfTurn extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to indicate the end of the turn of the active player.
+ */
+@Serializable
+public class EndOfTurn extends ServerMessage {
+    /**
+     * Constructs a new EndOfTurn instance.
+     */
+    public EndOfTurn() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyAccept.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyAccept.java
index 324c69e5..d252148d 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyAccept.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyAccept.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class LobbyAccept extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to indicate that the client has been accepted into the lobby.
+ */
+@Serializable
+public class LobbyAccept extends ServerMessage {
+    /**
+     * Constructs a new LobbyAccept instance.
+     */
+    public LobbyAccept() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyDeny.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyDeny.java
index 0cbd29f0..0717f814 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyDeny.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyDeny.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class LobbyDeny extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to deny a client's request to join the lobby.
+ */
+@Serializable
+public class LobbyDeny extends ServerMessage {
+    /**
+     * Constructs a new LobbyDeny instance.
+     */
+    public LobbyDeny() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyPlayerJoin.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyPlayerJoin.java
index 5d686153..1eb189a0 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyPlayerJoin.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyPlayerJoin.java
@@ -1,22 +1,62 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
+
+/**
+ * A message sent from the server to the client indicating that a player has joined the lobby.
+ */
+@Serializable
 public class LobbyPlayerJoin extends ServerMessage {
 
+    /**
+     * The name of the player joining the lobby.
+     */
     private final String name;
 
+    /**
+     * Constructs a new LobbyPlayerJoin instance with the specified player name.
+     *
+     * @param name the name of the player joining the lobby
+     */
     public LobbyPlayerJoin(String name) {
+        super();
         this.name = name;
     }
 
+    /**
+     * Returns the name of the player joining the lobby.
+     *
+     * @return the name of the player joining the lobby
+     */
     public String getName() {
         return name;
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyPlayerLeave.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyPlayerLeave.java
index 4f4ab6a3..267a368f 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyPlayerLeave.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/LobbyPlayerLeave.java
@@ -1,29 +1,78 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
 import pp.mdga.game.Color;
 
+/**
+ * A message sent by the server to indicate that a player has left the lobby.
+ */
+@Serializable
 public class LobbyPlayerLeave extends ServerMessage {
-
+    /**
+     * The name of the player leaving the lobby.
+     */
     private final String name;
+
+    /**
+     * The color associated with the player leaving the lobby.
+     */
     private final Color color;
 
+    /**
+     * Constructs a new LobbyPlayerLeave instance with the specified player name and color.
+     *
+     * @param name  the name of the player leaving the lobby
+     * @param color the color associated with the player leaving the lobby
+     */
     public LobbyPlayerLeave(String name, Color color) {
+        super();
         this.name = name;
         this.color = color;
     }
 
+    /**
+     * Returns the name of the player leaving the lobby.
+     *
+     * @return the name of the player leaving the lobby
+     */
     public String getName() {
         return name;
     }
 
+    /**
+     * Returns the color associated with the player leaving the lobby.
+     *
+     * @return the color associated with the player leaving the lobby
+     */
     public Color getColor() {
         return color;
     }
+
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/MoveMessage.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/MoveMessage.java
index 4a7a3a39..d3df9f6c 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/MoveMessage.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/MoveMessage.java
@@ -1,17 +1,30 @@
 package pp.mdga.message.server;
 
-public class MoveMessage extends ServerMessage {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to the client to move a piece on the board.
+ */
+@Serializable
+public class MoveMessage extends ServerMessage {
+    /**
+     * The identifier of the piece that should be moved.
+     */
     private final String pieceIdentifier;
 
     /**
+     * Constructs a new MoveMessage instance.
+     *
      * @param identifier the identifier of the piece that should be moved
      */
     public MoveMessage(String identifier) {
+        super();
         this.pieceIdentifier = identifier;
     }
 
     /**
+     * Returns the identifier of the piece that should be moved.
+     *
      * @return the identifier of the piece that should be moved
      */
     public String getIdentifier() {
@@ -19,13 +32,30 @@ public String getIdentifier() {
     }
 
     /**
-     * @return the identifier of the piece that should be moved
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
      */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/NoTurn.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/NoTurn.java
index c1b1f436..8a412de4 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/NoTurn.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/NoTurn.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class NoTurn extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to the active player to indicate that he has no valid moves.
+ */
+@Serializable
+public class NoTurn extends ServerMessage {
+    /**
+     * Constructs a new NoTurn instance.
+     */
+    public NoTurn() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PauseGame.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PauseGame.java
index d9416c30..19c95651 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PauseGame.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PauseGame.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class PauseGame extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to indicate that the game is paused.
+ */
+@Serializable
+public class PauseGame extends ServerMessage {
+    /**
+     * Constructs a new PauseGame instance.
+     */
+    public PauseGame() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PlayCard.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PlayCard.java
index 4b5f61ae..4d027172 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PlayCard.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PlayCard.java
@@ -1,22 +1,38 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
 import pp.mdga.game.BonusCard;
 
+/**
+ * A message sent by the server to the active player to play a card.
+ */
+@Serializable
 public class PlayCard extends ServerMessage {
-
+    /**
+     * The card that should be played.
+     */
     private final BonusCard card;
+
+    /**
+     * The identifier of the piece that should be moved.
+     */
     private final String pieceIdentifier;
 
     /**
-     * @param card the card that should be played
+     * Constructs a new PlayCard message.
+     *
+     * @param card            the card that should be played
      * @param pieceIdentifier the identifier of the piece that should be moved
      */
     public PlayCard(BonusCard card, String pieceIdentifier) {
+        super();
         this.card = card;
         this.pieceIdentifier = pieceIdentifier;
     }
 
     /**
+     * Returns the card that should be played.
+     *
      * @return the card that should be played
      */
     public BonusCard getCard() {
@@ -24,16 +40,39 @@ public BonusCard getCard() {
     }
 
     /**
+     * Returns the identifier of the piece that should be moved.
+     *
      * @return the identifier of the piece that should be moved
      */
     public String getPieceIdentifier() {
         return pieceIdentifier;
     }
+
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PossibleCard.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PossibleCard.java
index d543b3c6..35df9bef 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PossibleCard.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PossibleCard.java
@@ -1,38 +1,72 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
 import pp.mdga.game.BonusCard;
 
 import java.util.ArrayList;
+import java.util.List;
 
+/**
+ * A message sent by the server to the client to indicate the possible cards that can be chosen.
+ */
+@Serializable
 public class PossibleCard extends ServerMessage {
+    /**
+     * The list of possible cards.
+     */
+    private final List<BonusCard> possibleCards;
 
-    private ArrayList<BonusCard> possibleCards;
-
-    /** Constructor for PossibleCard
+    /**
+     * Constructor for a PossibleCard instance.
      */
     public PossibleCard() {
+        super();
         possibleCards = new ArrayList<>();
     }
 
-    /** Add a possible card to the list of possible cards
+    /**
+     * Add a possible card to the list of possible cards
+     *
      * @param card the possible card to add
      */
     public void addPossibleCard(BonusCard card) {
         this.possibleCards.add(card);
     }
 
-    /** Getter for the list of possible cards
+    /**
+     * Getter for the list of possible cards
+     *
      * @return the list of possible cards
      */
-    public ArrayList<BonusCard> getPossibleCards() {
+    public List<BonusCard> getPossibleCards() {
         return possibleCards;
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PossiblePiece.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PossiblePiece.java
index d85b9453..4755b9c8 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PossiblePiece.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/PossiblePiece.java
@@ -1,27 +1,46 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
+
 import java.util.ArrayList;
+import java.util.List;
 
+/**
+ * A message sent by the server to the active player to give all possible pieces to choose from.
+ */
+@Serializable
 public class PossiblePiece extends ServerMessage {
+    /**
+     * The list of possible own pieces
+     */
+    private final List<String> possibleOwnPieces;
 
-    private final ArrayList<String> possibleOwnPieces;
-    private final ArrayList<String> possibleEnemyPieces;
+    /**
+     * The list of possible enemy pieces
+     */
+    private final List<String> possibleEnemyPieces;
 
-    /** Constructor for PossiblePiece
+    /**
+     * Constructor for PossiblePiece
      */
     public PossiblePiece() {
+        super();
         possibleOwnPieces = new ArrayList<>();
         possibleEnemyPieces = new ArrayList<>();
     }
 
-    /** Add a piece to the list of possible pieces
+    /**
+     * Add a piece to the list of possible pieces
+     *
      * @param piece the piece to add
      */
     public void addOwnPossiblePiece(String piece) {
         this.possibleOwnPieces.add(piece);
     }
 
-    /** Add a piece to the list of possible enemy pieces
+    /**
+     * Add a piece to the list of possible enemy pieces
+     *
      * @param piece the piece to add
      */
     public void addEnemyPossiblePiece(String piece) {
@@ -31,15 +50,35 @@ public void addEnemyPossiblePiece(String piece) {
     /** Getter for the list of possible pieces
      * @return the list of possible pieces
      */
-    public ArrayList<String> getPossiblePieces() {
+    public List<String> getPossiblePieces() {
         return possibleOwnPieces;
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/RankingResponce.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/RankingResponce.java
deleted file mode 100644
index 4464bf2c..00000000
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/RankingResponce.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package pp.mdga.message.server;
-
-public class RankingResponce extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
-
-    }
-
-    @Override
-    public String getInfoTextKey() {
-        return "";
-    }
-}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/RankingResponse.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/RankingResponse.java
new file mode 100644
index 00000000..9b5eda2f
--- /dev/null
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/RankingResponse.java
@@ -0,0 +1,46 @@
+package pp.mdga.message.server;
+
+import com.jme3.network.serializing.Serializable;
+
+/**
+ * A message sent by the server to all client to inform them about the current ranking. (only in DetermineStartPlayer)
+ */
+@Serializable
+public class RankingResponse extends ServerMessage {
+    /**
+     * Constructs a new RankingResponse instance.
+     */
+    public RankingResponse() {
+        super();
+    }
+
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
+    @Override
+    public String getInfoTextKey() {
+        return "";
+    }
+}
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/RankingRollAgain.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/RankingRollAgain.java
index a1c200f9..eaf06392 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/RankingRollAgain.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/RankingRollAgain.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class RankingRollAgain extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to the clients to indicate that the ranking shall be rolled again. (only in DetermineStartPlayer)
+ */
+@Serializable
+public class RankingRollAgain extends ServerMessage {
+    /**
+     * Constructs a new RankingRollAgain instance.
+     */
+    public RankingRollAgain() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ReconnectBriefing.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ReconnectBriefing.java
index 7910e2c2..08f93d52 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ReconnectBriefing.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ReconnectBriefing.java
@@ -1,23 +1,60 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
 import pp.mdga.game.Game;
 
+/**
+ * A message sent by the server to a client that has reconnected to the game. (give the last saved model)
+ */
+@Serializable
 public class ReconnectBriefing extends ServerMessage {
-
+    /**
+     * The game.
+     */
     private final Game game;
 
+    /**
+     * Constructs a new ReconnectBriefing message.
+     */
     public ReconnectBriefing(Game game) {
+        super();
         this.game = game;
     }
 
+    /**
+     * Returns the game.
+     *
+     * @return the game
+     */
     public Game getGame() {
         return game;
     }
+
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ResumeGame.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ResumeGame.java
index 764dbb52..1ebfd673 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ResumeGame.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ResumeGame.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class ResumeGame extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to resume the game.
+ */
+@Serializable
+public class ResumeGame extends ServerMessage {
+    /**
+     * Constructs a new ResumeGame instance.
+     */
+    public ResumeGame() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerInterpreter.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerInterpreter.java
index d8f068cc..e9dde28a 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerInterpreter.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerInterpreter.java
@@ -1,4 +1,196 @@
 package pp.mdga.message.server;
 
+/**
+ * An interface for processing server messages.
+ * Implementations of this interface can be used to handle different types of server messages.
+ */
 public interface ServerInterpreter {
+    /**
+     * Handles an ActivePlayer message received from the server.
+     *
+     * @param msg the ActivePlayer message received
+     */
+    void received(ActivePlayer msg);
+
+    /**
+     * Handles an AnyPiece message received from the server.
+     *
+     * @param msg the AnyPiece message received
+     */
+    void received(AnyPiece msg);
+
+    /**
+     * Handles a Briefing message received from the server.
+     *
+     * @param msg the Briefing message received
+     */
+    void received(Briefing msg);
+
+    /**
+     * Handles a Ceremony message received from the server.
+     *
+     * @param msg the Ceremony message received
+     */
+    void received(Ceremony msg);
+
+    /**
+     * Handles a Dice message received from the server.
+     *
+     * @param msg the Dice message received
+     */
+    void received(Dice msg);
+
+    /**
+     * Handles a DiceAgain message received from the server.
+     *
+     * @param msg the DiceAgain message received
+     */
+    void received(DiceAgain msg);
+
+    /**
+     * Handles a DiceNow message received from the server.
+     *
+     * @param msg the DiceNow message received
+     */
+    void received(DiceNow msg);
+
+    /**
+     * Handles an EndOfGame message received from the server.
+     *
+     * @param msg the EndOfGame message received
+     */
+    void received(EndOfTurn msg);
+
+    /**
+     * Handles a GameOver message received from the server.
+     *
+     * @param msg the GameOver message received
+     */
+    void received(LobbyAccept msg);
+
+    /**
+     * Handles a LobbyDeny message received from the server.
+     *
+     * @param msg the LobbyDeny message received
+     */
+    void received(LobbyDeny msg);
+
+    /**
+     * Handles a LobbyPlayerJoin message received from the server.
+     *
+     * @param msg the LobbyPlayerJoin message received
+     */
+    void received(LobbyPlayerJoin msg);
+
+    /**
+     * Handles a LobbyPlayerLeave message received from the server.
+     *
+     * @param msg the LobbyPlayerLeave message received
+     */
+    void received(LobbyPlayerLeave msg);
+
+    /**
+     * Handles a MoveMessage message received from the server.
+     *
+     * @param msg the MoveMessage message received
+     */
+    void received(MoveMessage msg);
+
+    /**
+     * Handles a NoTurn message received from the server.
+     *
+     * @param msg the NoTurn message received
+     */
+    void received(NoTurn msg);
+
+    /**
+     * Handles a PauseGame message received from the server.
+     *
+     * @param msg the PauseGame message received
+     */
+    void received(PauseGame msg);
+
+    /**
+     * Handles a PlayCard message received from the server.
+     *
+     * @param msg the PlayCard message received
+     */
+    void received(PlayCard msg);
+
+    /**
+     * Handles a PossibleCard message received from the server.
+     *
+     * @param msg the PossibleCard message received
+     */
+    void received(PossibleCard msg);
+
+    /**
+     * Handles a PossiblePiece message received from the server.
+     *
+     * @param msg the PossiblePiece message received
+     */
+    void received(PossiblePiece msg);
+
+    /**
+     * Handles a RankingResponce message received from the server.
+     *
+     * @param msg the RankingResponce message received
+     */
+    void received(RankingResponse msg);
+
+    /**
+     * Handles a RankingRollAgain message received from the server.
+     *
+     * @param msg the RankingRollAgain message received
+     */
+    void received(RankingRollAgain msg);
+
+    /**
+     * Handles a ReconnectBriefing message received from the server.
+     *
+     * @param msg the ReconnectBriefing message received
+     */
+    void received(ReconnectBriefing msg);
+
+    /**
+     * Handles a ResumeGame message received from the server.
+     *
+     * @param msg the ResumeGame message received
+     */
+    void received(ResumeGame msg);
+
+    /**
+     * Handles a ServerStartGame message received from the server.
+     *
+     * @param msg the ServerStartGame message received
+     */
+    void received(ServerStartGame msg);
+
+    /**
+     * Handles a StartPiece message received from the server.
+     *
+     * @param msg the StartPiece message received
+     */
+    void received(StartPiece msg);
+
+    /**
+     * Handles a UpdateReady message received from the server.
+     *
+     * @param msg the UpdateReady message received
+     */
+    void received(UpdateReady msg);
+
+    /**
+     * Handles a UpdateTSK message received from the server.
+     *
+     * @param msg the UpdateTSK message received
+     */
+    void received(UpdateTSK msg);
+
+    /**
+     * Handles a WaitPiece message received from the server.
+     *
+     * @param msg the WaitPiece message received
+     */
+    void received(WaitPiece msg);
 }
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerMessage.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerMessage.java
index b97aec1a..bc1d6b7d 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerMessage.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerMessage.java
@@ -2,12 +2,30 @@
 
 import com.jme3.network.AbstractMessage;
 
+/**
+ * An abstract base class for server messages used in network transfer.
+ * It extends the AbstractMessage class provided by the jme3-network library.
+ */
 public abstract class ServerMessage extends AbstractMessage {
+    /**
+     * Constructs a new ServerMessage instance.
+     */
     protected ServerMessage() {
         super(true);
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     public abstract void accept(ServerInterpreter interpreter);
 
+    /**
+     * Gets the bundle key of the informational text to be shown at the client.
+     * This key is used to retrieve the appropriate localized text for display.
+     *
+     * @return the bundle key of the informational text
+     */
     public abstract String getInfoTextKey();
 }
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerStartGame.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerStartGame.java
index 5a684bb8..d6ec553d 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerStartGame.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/ServerStartGame.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
-public class ServerStartGame extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message indicating that the game shall start.
+ */
+@Serializable
+public class ServerStartGame extends ServerMessage {
+    /**
+     * Constructs a new ServerStartGame instance.
+     */
+    public ServerStartGame() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/StartPiece.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/StartPiece.java
index 902c467b..37baf781 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/StartPiece.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/StartPiece.java
@@ -1,22 +1,61 @@
 package pp.mdga.message.server;
 
-public class StartPiece extends ServerMessage {
+import com.jme3.network.serializing.Serializable;
 
+/**
+ * A message sent by the server to the active player that he has to move a start piece.
+ */
+@Serializable
+public class StartPiece extends ServerMessage {
+    /**
+     * The identifier for the piece.
+     */
     private final String pieceIdentifier;
 
+    /**
+     * Constructs a new StartPiece instance with the specified piece identifier.
+     *
+     * @param pieceIdentifier the identifier for the piece
+     */
     public StartPiece(String pieceIdentifier) {
+        super();
         this.pieceIdentifier = pieceIdentifier;
     }
 
+    /**
+     * Gets the identifier for the piece.
+     *
+     * @return the piece identifier
+     */
     public String getPieceIdentifier() {
         return pieceIdentifier;
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/UpdateReady.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/UpdateReady.java
index c7ad2593..cd728468 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/UpdateReady.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/UpdateReady.java
@@ -1,29 +1,78 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
 import pp.mdga.game.Color;
 
+/**
+ * A message sent by the server to every client to update the readiness status of a player.
+ */
+@Serializable
 public class UpdateReady extends ServerMessage {
-
+    /**
+     * The color associated with the update.
+     */
     private final Color color;
+
+    /**
+     * Indicates whether the player is ready.
+     */
     private final boolean ready;
 
+    /**
+     * Constructs a new UpdateReady instance with the specified color and readiness status.
+     *
+     * @param color the color associated with the update
+     * @param ready the readiness status
+     */
     public UpdateReady(Color color, boolean ready) {
+        super();
         this.color = color;
         this.ready = ready;
     }
 
+    /**
+     * Gets the color associated with the update.
+     *
+     * @return the color
+     */
     public Color getColor() {
         return color;
     }
 
+    /**
+     * Checks if the player is ready.
+     *
+     * @return true if the player is ready, false otherwise
+     */
     public boolean isReady() {
         return ready;
     }
+
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/UpdateTSK.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/UpdateTSK.java
index e3280085..f8caa21f 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/UpdateTSK.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/UpdateTSK.java
@@ -1,30 +1,77 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
 import pp.mdga.game.Color;
 
+/**
+ * A message sent by the server to every client to update the TSK.
+ */
+@Serializable
 public class UpdateTSK extends ServerMessage {
-
+    /**
+     * The name associated with the update.
+     */
     private final String name;
+
+    /**
+     * The color associated with the update.
+     */
     private final Color color;
 
+    /**
+     * Constructs a new UpdateTSK instance with the specified name and color.
+     *
+     * @param name  the name associated with the update
+     * @param color the color associated with the update
+     */
     public UpdateTSK(String name, Color color) {
         this.name = name;
         this.color = color;
     }
 
+    /**
+     * Gets the name associated with the update.
+     *
+     * @return the name
+     */
     public String getName() {
         return name;
     }
 
+    /**
+     * Gets the color associated with the update.
+     *
+     * @return the color
+     */
     public Color getColor() {
         return color;
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
     @Override
     public void accept(ServerInterpreter interpreter) {
-
+        interpreter.received(this);
     }
 
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";
diff --git a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/WaitPiece.java b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/WaitPiece.java
index 41cd1151..5e32338a 100644
--- a/Projekte/mdga/model/src/main/java/pp.mdga/message/server/WaitPiece.java
+++ b/Projekte/mdga/model/src/main/java/pp.mdga/message/server/WaitPiece.java
@@ -1,11 +1,44 @@
 package pp.mdga.message.server;
 
+import com.jme3.network.serializing.Serializable;
+
+/**
+ * A message sent by the server to the active player to choose a piece from the waiting area.
+ */
+@Serializable
 public class WaitPiece extends ServerMessage {
-    @Override
-    public void accept(ServerInterpreter interpreter) {
-        
+    /**
+     * Constructs a new WaitPiece instance.
+     */
+    public WaitPiece() {
+        super();
     }
 
+    /**
+     * Accepts a visitor to process this message.
+     *
+     * @param interpreter the visitor to process this message
+     */
+    @Override
+    public void accept(ServerInterpreter interpreter) {
+        interpreter.received(this);
+    }
+
+    /**
+     * Returns a string representation of this message.
+     *
+     * @return a string representation of this message
+     */
+    @Override
+    public String toString() {
+        return "";
+    }
+
+    /**
+     * Returns the key for the info text of this message.
+     *
+     * @return the key for the info text of this message
+     */
     @Override
     public String getInfoTextKey() {
         return "";