final FrontEndForward transition = (FrontEndForward)transitionIterator.next();
final EventFacade event = transition.getTrigger();
if (event instanceof FrontEndEvent)
{
final FrontEndEvent trigger = (FrontEndEvent)event;
final FrontEndControllerOperation operation = trigger.getControllerCall();
if (this.equals(operation))
{
// we have two types of controller calls: the ones in action states and the ones for decisions
final StateVertexFacade source = transition.getSource();
if (source instanceof FrontEndActionState)