Icon class icon_class fas fa-quote-left icon_class_computed fas fa-quote-left Related content UML Event types for triggering Transitions uml101 - StateMachines - NOTATION REFERENCE CARD 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 Behavior Trigger Event occurrence Trigger::event Previous snippet Full quote A Trigger specifies a specific point at which an Event occurrence may trigger an effect in a Behavior. Next snippet A Trigger may be qualified by the Port on which the Event occurred. Related snippets Related snippets (backlinks) trigger_with_ports: If a Trigger specifies one or more ports, the event of the Trigger must be a MessageEvent. An Event is the specification of some occurrence that may potentially trigger effects by an object. A ChangeEvent models a change in the system configuration that makes a condition true. A TimeEvent is an Event that occurs at a specific point in time. Visit also Visit also (backlinks) Flags