Adding execution occurrence to interactions

Sequence diagrams can add execution occurrence to lifelines to control the start and finish behavior or flow of interactions to develop interactions for C/C++ applications..

An execution occurrence is created automatically when you create a synchronous or an asynchronous message on a lifeline. You can also manually create an execution occurrence to control the start and finish behavior in an interaction.

You can nest execution occurrences to indicate nested behavior in a call sequence. A nested execution occurrence overlaps an existing execution occurrence, and enables you to distinguish exactly where the activity associated with each message starts and finishes.

Related concepts
Execution occurrences
Terms of use | Feedback
(C) Copyright IBM Corporation 2004, 2005. All Rights Reserved.