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SysML Distilled: A Brief Guide to the Systems Modeling Language by Lenny Delligatti

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Chapter 6. Activity Diagrams

Activity diagrams are one of three kinds of SysML diagrams that you can use to express information about a system’s dynamic behavior. An activity diagram can display various kinds of actions, enabling you to convey even the most complex behavioral narratives. Object nodes let you model the flow of matter, energy, and data through an activity, and you can use control nodes to steer the execution of an activity. Activity partitions enable you to allocate system behaviors to system structures.

6.1. Purpose

An activity diagram is a kind of behavior diagram; it’s a dynamic view of the system that expresses sequences of behaviors and event occurrences over time. This is in contrast to structure diagrams (BDDs, IBDs, and ...

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