Yellow arrows are only needed if an ecore model and an ATL or ModelJoin Rule are insert at the same time.
Code Generator starts his work if he gets an ATL Rule or a ModelJoin Rule or an Ecore Model. (Decide for an Ecore model what should be generated -> RSUM changes or RoleSync Changes or both)
Normal CLI features should exists too. (TODO: Christopher integrate all the things above in the diagram)
