Icon class icon_class fas fa-quote-left icon_class_computed fas fa-quote-left Related content UML Event types for triggering Transitions Source Unified Modeling Language 2.5.1 Copyright information About Object Management Group copyright in text extracts quoted from OMG specifications for educational purposes Snippet kind INFO UML keywords Event MessageEvent AnyReceiveEvent Trigger Trigger::event Message Previous snippet Full quote A trigger for an AnyReceiveEvent is triggered by the receipt of any message that is not explicitly handled by any related trigger. Next snippet Related snippets An Event is the specification of some occurrence that may potentially trigger effects by an object. A MessageEvent specifies the receipt by an object of either an Operation call or a Signal instance. Related snippets (backlinks) A CallEvent models the receipt by an object of a message invoking a call of an Operation. A SignalEvent represents the receipt of an asynchronous Signal instance. Visit also Visit also (backlinks) Flags