diff --git a/de.fhmuenster.masterthesis.textgeneratordsl/src/de/fhmuenster/masterthesis/serialization/Main.java b/de.fhmuenster.masterthesis.textgeneratordsl/src/de/fhmuenster/masterthesis/serialization/Main.java
index f2895faebaa2d6418a1771e5416729c5a620f658..dac4746b6fea2eaf8e3bea76257a89e209cad858 100644
--- a/de.fhmuenster.masterthesis.textgeneratordsl/src/de/fhmuenster/masterthesis/serialization/Main.java
+++ b/de.fhmuenster.masterthesis.textgeneratordsl/src/de/fhmuenster/masterthesis/serialization/Main.java
@@ -30,7 +30,7 @@ public class Main {
 				Arrays.asList("decision.dmn"),
 				Arrays.asList("wup.html")); //
 		
-		FlowElement start = TestgeneratorDSLObjectCreator.createStartFlowElement("Start_123", Arrays.asList());
+		FlowElement start = TestgeneratorDSLObjectCreator.createStartFlowElement("Start_123", Arrays.asList(), null);
 		FlowElement gateway = TestgeneratorDSLObjectCreator.createGatewayFlowElement("Gateway_123");
 		FlowElement activity = TestgeneratorDSLObjectCreator.createUserTaskFlowElement("Activity_123", Arrays.asList(), Arrays.asList(), "Activity 123", null);
 		FlowElement end = TestgeneratorDSLObjectCreator.createEndFlowElement("End_123");
@@ -81,7 +81,7 @@ public class Main {
 	private static void doFourth() throws IOException {
 		TestgeneratorDSLSerializer serialize = new TestgeneratorDSLSerializer("C:\\Users\\Leon\\Desktop\\Test123.bpmn-testgen");
 
-		FlowElement start3 = TestgeneratorDSLObjectCreator.createStartFlowElement("Start_789", Arrays.asList());
+		FlowElement start3 = TestgeneratorDSLObjectCreator.createStartFlowElement("Start_789", Arrays.asList(), null);
 		serialize.addFlowElement(start3);
 		
 		serialize.serialize();
diff --git a/de.fhmuenster.masterthesis.textgeneratordsl/src/de/fhmuenster/masterthesis/serialization/TestgeneratorDSLObjectCreator.java b/de.fhmuenster.masterthesis.textgeneratordsl/src/de/fhmuenster/masterthesis/serialization/TestgeneratorDSLObjectCreator.java
index 17e3ee90835ccb41ea27b04c2fddbc29053f524c..7afcad63d96f741dddb755cece7e421b2ce9b31d 100644
--- a/de.fhmuenster.masterthesis.textgeneratordsl/src/de/fhmuenster/masterthesis/serialization/TestgeneratorDSLObjectCreator.java
+++ b/de.fhmuenster.masterthesis.textgeneratordsl/src/de/fhmuenster/masterthesis/serialization/TestgeneratorDSLObjectCreator.java
@@ -27,6 +27,7 @@ import de.fhmuenster.masterthesis.testgeneratorDSL.ExternalServiceMock;
 import de.fhmuenster.masterthesis.testgeneratorDSL.ExternalServiceTaskFlowElement;
 import de.fhmuenster.masterthesis.testgeneratorDSL.ExternalTopic;
 import de.fhmuenster.masterthesis.testgeneratorDSL.ExternalTopicReference;
+import de.fhmuenster.masterthesis.testgeneratorDSL.Flag;
 import de.fhmuenster.masterthesis.testgeneratorDSL.Flow;
 import de.fhmuenster.masterthesis.testgeneratorDSL.FlowElement;
 import de.fhmuenster.masterthesis.testgeneratorDSL.FlowElementReference;
@@ -90,7 +91,7 @@ public class TestgeneratorDSLObjectCreator {
 		return bpmnDiagram;
 	}
 	
-	public static StartFlowElement createStartFlowElement(String name, List<Variable> startVariables) {
+	public static StartFlowElement createStartFlowElement(String name, List<Variable> startVariables, HashMap<String, List<Constraint>> taskSpecificConstraints) {
 		StartFlowElement element = TestgeneratorDSLFactory.eINSTANCE.createStartFlowElement();
 		element.setName(name);
 		
@@ -98,6 +99,16 @@ public class TestgeneratorDSLObjectCreator {
 			VariableReference variableReference = TestgeneratorDSLFactory.eINSTANCE.createVariableReference();
 			variableReference.setRef(startVar);
 			element.getInputVariables().add(variableReference);
+			
+			if(taskSpecificConstraints.get(startVar.getName()) != null) {
+				for(Constraint c : taskSpecificConstraints.get(startVar.getName())) {
+					if(c.getKey().equals("required")) {
+						if(c.getValue() == 0) {
+							variableReference.setValidationStatus(ValidationState.OPTIONAL);
+						}
+					}
+				}
+			}
 		}
 
 		return element;
@@ -365,7 +376,7 @@ public class TestgeneratorDSLObjectCreator {
 		return manualMock;
 	}
 	
-	public static Test createTest(String name, Flow flow, List<VariableDeclarations> variableDeclarations, EndChecks endChecks, List<Mock> mocks, int priority) {
+	public static Test createTest(String name, Flow flow, List<VariableDeclarations> variableDeclarations, EndChecks endChecks, List<Mock> mocks, int priority, Flag flag) {
 		FlowReference flowReference = TestgeneratorDSLFactory.eINSTANCE.createFlowReference();
 		flowReference.setRef(flow);
 		
@@ -381,6 +392,7 @@ public class TestgeneratorDSLObjectCreator {
 		test.setName(name);
 		test.setFlowReference(flowReference);
 		test.setPriority(priority);
+		test.setFlag(flag);
 		test.getDeclarations().addAll(variableDeclarations);
 		test.getMocks().addAll(mockRefs);