Unified Modeling Language Reference Manual, The, Second Edition

completion transition

A transition that lacks an explicit trigger event and is triggered by the completion of activity in the source state.

See also do activity, transition, trigger.

Semantics

A completion transition is represented as a transition that has no explicit trigger event. The transition is triggered implicitly when its source state (including nested states) has completed any activity. Completion can be one of the following:

• Termination of an entry action and a contained do activity, if any

• Reaching a final state within a nonorthogonal composite state

• Reaching the final states of all regions of an orthogonal state

• Reaching an unlabeled exit point or final state within a referenced submachine

An exit activity on a state is executed when ...