diff --git a/Projekte/monopoly/model/src/main/java/pp/monopoly/model/CardVisitor.java b/Projekte/monopoly/model/src/main/java/pp/monopoly/model/CardVisitor.java
new file mode 100644
index 0000000..257f81f
--- /dev/null
+++ b/Projekte/monopoly/model/src/main/java/pp/monopoly/model/CardVisitor.java
@@ -0,0 +1,7 @@
+package pp.monopoly.model;
+
+import pp.monopoly.model.card.Card;
+
+public interface CardVisitor<T> {
+    T visit(Card c);
+}
diff --git a/Projekte/monopoly/model/src/main/java/pp/monopoly/model/FieldVisitor.java b/Projekte/monopoly/model/src/main/java/pp/monopoly/model/FieldVisitor.java
new file mode 100644
index 0000000..85caf25
--- /dev/null
+++ b/Projekte/monopoly/model/src/main/java/pp/monopoly/model/FieldVisitor.java
@@ -0,0 +1,21 @@
+package pp.monopoly.model;
+
+import pp.monopoly.model.fields.BuildingProperty;
+import pp.monopoly.model.fields.EventField;
+import pp.monopoly.model.fields.FoodField;
+import pp.monopoly.model.fields.GateField;
+import pp.monopoly.model.fields.GoField;
+import pp.monopoly.model.fields.GulagField;
+import pp.monopoly.model.fields.TestStreckeField;
+import pp.monopoly.model.fields.WacheField;
+
+public interface FieldVisitor<T> {
+    T visit(BuildingProperty field);
+    T visit(FoodField field);
+    T visit(GateField field);
+    T visit(GulagField field);
+    T visit(TestStreckeField field);
+    T visit(EventField field);
+    T visit(WacheField field);
+    T visit(GoField field);
+}