Message sequence chart: Difference between revisions

Revision as of 14:08, 4 October 2013

Revision as of 14:18, 4 October 2013

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UML Sequence Diagram looks very similar to the ITU-T MSC but the default basic principles are quite different:

* Lifelines

:* In an MSC, the vertical lines are autonomous execution entities. They usually represent state machines executing in parallel. The state machines mightneed not be on the same computer.

:* In a Sequence Diagram, a vertical line is usually an object. The object can be active (in its own thread of execution) or passive (in the execution context of an active object).

* Arrows