
Metamodel user guide
An Event is the specification of a specific occurrence at a specific point in space and time. An instance of an Event can lead to the activation of a behavioral Feature in an object.
An Event can be either an occurrence of a Signal, a message occurrence, a time or a change expression occurrence.
In Modelio, an Event belongs to a State Machine.


Attribute | Description |
---|---|
string Expression [0..1] | Expression initiating the Event. This can be a time expression or a triggering condition, and can contain parameter values in the case of operation call event, and so on. |
EventType Kind [0..1] | Defines the nature of the event (Time, Signal occurrence, and so on.) |
Association | Description |
---|---|
Called : Operation [0..1] | |
Model : Signal [0..1] | |
Composed : Behavior [1..1] | Events are defined in the context of a Behavior. |
Triggered : Transition [0..*] | Events that may trigger the Transition (under initial state and initial Transitions). This association is exclusive from the "ReceivedEvents" string. |
Origin : State [0..*] | A list of Events the effect of whose occurrence during the State is postponed until the owner enters a State in which they are not deferred, at which time they may trigger Transitions as if they had just occurred. |