diff --git a/hsarback/src/de/hsadmin/core/model/AbstractListValue.java b/hsarback/src/de/hsadmin/core/model/AbstractListValue.java
new file mode 100644
index 0000000..281c058
--- /dev/null
+++ b/hsarback/src/de/hsadmin/core/model/AbstractListValue.java
@@ -0,0 +1,16 @@
+package de.hsadmin.core.model;
+
+public abstract class AbstractListValue  implements SelectableValue {
+
+	private String name;
+
+	public AbstractListValue(String string) {
+		name = string;
+	}
+
+	@Override
+	public String getName() {
+		return name;
+	}
+
+}
\ No newline at end of file
diff --git a/hsarback/src/de/hsadmin/core/model/BooleanListValue.java b/hsarback/src/de/hsadmin/core/model/BooleanListValue.java
new file mode 100644
index 0000000..fe4e5b6
--- /dev/null
+++ b/hsarback/src/de/hsadmin/core/model/BooleanListValue.java
@@ -0,0 +1,14 @@
+package de.hsadmin.core.model;
+
+
+public class BooleanListValue extends AbstractListValue {
+	
+	public BooleanListValue(String string) {
+		super(string);
+	}
+
+	@Override
+	public Object[] getValues() {
+		return new Boolean[]{ Boolean.TRUE, Boolean.FALSE };
+	}
+}
\ No newline at end of file
diff --git a/hsarback/src/de/hsadmin/core/model/DefaultSelectableValues.java b/hsarback/src/de/hsadmin/core/model/DefaultSelectableValues.java
new file mode 100644
index 0000000..5cdda0e
--- /dev/null
+++ b/hsarback/src/de/hsadmin/core/model/DefaultSelectableValues.java
@@ -0,0 +1,11 @@
+package de.hsadmin.core.model;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class DefaultSelectableValues {
+
+		public List<SelectableValue> get() {
+			return new ArrayList<SelectableValue>();
+		}
+}
diff --git a/hsarback/src/de/hsadmin/core/model/SelectableValue.java b/hsarback/src/de/hsadmin/core/model/SelectableValue.java
new file mode 100644
index 0000000..f38abc4
--- /dev/null
+++ b/hsarback/src/de/hsadmin/core/model/SelectableValue.java
@@ -0,0 +1,6 @@
+package de.hsadmin.core.model;
+
+public interface SelectableValue {
+	public String getName();
+	public Object[] getValues();
+}
diff --git a/hsarback/src/de/hsadmin/mods/cust/Customer.java b/hsarback/src/de/hsadmin/mods/cust/Customer.java
index bb2039e..33b9b9e 100644
--- a/hsarback/src/de/hsadmin/mods/cust/Customer.java
+++ b/hsarback/src/de/hsadmin/mods/cust/Customer.java
@@ -84,9 +84,9 @@ public class Customer extends AbstractEntity implements Serializable {
 	//@AnnFieldIO(referredProps = "customer")//gut
 	//@AnnFieldIO(referredProps = "customer.CustomersTariff.domainDiscountUntil")//Das ist Kappes!
 	//@AnnFieldIO(referredProps = "customer.billData.domainDiscountUntil.year")//falsch!
-	//@AnnFieldIO(referredProps = "customer.billData.domainDiscountUntil.cdate")//gut
+	// @AnnFieldIO(referredProps = "customer.billData.domainDiscountUntil.cdate")//gut
 	//@AnnFieldIO(referredProps = {"customer.billData.domainDiscountUntil.cdate", "customer.billData."})//schlecht!
-	// @AnnFieldIO(referredProps = {"customer.billData.domainDiscountUntil.cdate", "customer.billData"})//gut
+	 @AnnFieldIO(referredProps = {"customer.billData.domainDiscountUntil.cdate", "customer.billData"})//gut
 	private BankAccount bankAccount;
 
 	@OneToOne(fetch = EAGER, cascade = ALL, mappedBy = "customer")