diff --git a/src/Registration/RegistrationContact.h b/src/Registration/RegistrationContact.h
index 74b843d..9df2c21 100644
--- a/src/Registration/RegistrationContact.h
+++ b/src/Registration/RegistrationContact.h
@@ -80,15 +80,20 @@ namespace sofa
 	
 	void cleanup() override;
 	
-	std::pair<core::CollisionModel*,core::CollisionModel*> getCollisionModels() override { return std::make_pair(model1,model2); }
+	void draw(const core::visual::VisualParams* vparams) override;		
+
+    protected:
+	std::pair<core::CollisionModel*,core::CollisionModel*> doGetCollisionModels() override 
+    { 
+        return std::make_pair(model1,model2); 
+    }
 	
-	void setDetectionOutputs(OutputVector* outputs) override;
+	void doSetDetectionOutputs(OutputVector* outputs) override;
 	
-	void createResponse(core::objectmodel::BaseContext* group) override;
+	void doCreateResponse(core::objectmodel::BaseContext* group) override;
 	
-	void removeResponse() override;
+	void doRemoveResponse() override;
 	
-	void draw(const core::visual::VisualParams* vparams) override;		
 	};
 
     } // namespace collision
diff --git a/src/Registration/RegistrationContact.inl b/src/Registration/RegistrationContact.inl
index 7f2782e..9da2698 100644
--- a/src/Registration/RegistrationContact.inl
+++ b/src/Registration/RegistrationContact.inl
@@ -67,7 +67,7 @@ void RegistrationContact<TCollisionModel1,TCollisionModel2,ResponseDataTypes>::c
 }
 
 template < class TCollisionModel1, class TCollisionModel2, class ResponseDataTypes >
-void RegistrationContact<TCollisionModel1,TCollisionModel2,ResponseDataTypes>::setDetectionOutputs(OutputVector* o)
+void RegistrationContact<TCollisionModel1,TCollisionModel2,ResponseDataTypes>::doSetDetectionOutputs(OutputVector* o)
 {
     TOutputVector& outputs = *static_cast<TOutputVector*>(o);
     if (ff==NULL)
@@ -191,7 +191,7 @@ void RegistrationContact<TCollisionModel1,TCollisionModel2,ResponseDataTypes>::s
 }
 
 template < class TCollisionModel1, class TCollisionModel2, class ResponseDataTypes >
-void RegistrationContact<TCollisionModel1,TCollisionModel2,ResponseDataTypes>::createResponse(core::objectmodel::BaseContext* group)
+void RegistrationContact<TCollisionModel1,TCollisionModel2,ResponseDataTypes>::doCreateResponse(core::objectmodel::BaseContext* group)
 {
     if (ff!=NULL)
     {
@@ -210,7 +210,7 @@ void RegistrationContact<TCollisionModel1,TCollisionModel2,ResponseDataTypes>::c
 }
 
 template < class TCollisionModel1, class TCollisionModel2, class ResponseDataTypes >
-void RegistrationContact<TCollisionModel1,TCollisionModel2,ResponseDataTypes>::removeResponse()
+void RegistrationContact<TCollisionModel1,TCollisionModel2,ResponseDataTypes>::doRemoveResponse()
 {
     if (ff!=NULL)
     {