The Rational Unified Process: An Introduction (3rd Edition)
A MODEL OF THE RATIONAL UNIFIED PROCESS
A process describes who is doing what, how, and when. The Rational Unified Process is represented using four primary modeling elements:
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Workers: the who
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Activities: the how
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Artifacts: the what
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Workflows: the when
The first three elements are shown in Figure 3-1, and Figure 3-5 shows a workflow.
Figure 3-1. Worker, activities, and artifact
Figure 3-5. Example of a workflow