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CIS339 Week 2 Homework

CIS339 Week 2 Homework - CIS339#2 What is the purpose of an...

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CIS339 #2 What is the purpose of an activity Diagram? Activity diagrams are graphical representations of workflows of stepwise activities and actions with support for choice, iteration and concurrency . In the Unified Modeling Language, activity diagrams can be used to describe the business and operational step-by-step workflows of components in a system. An activity diagram shows the overall flow of control. Activity Diagram s can be applied in SysML the activity diagram has been extended to indicate flows among steps that convey physical matter (e.g., gasoline) or energy (e.g., torque, pressure). Additional changes allow the diagram to better support continuous behaviors and continuous data flows. #3 What is the difference between an activity diagram and an action? An action may have sets of incoming and outgoing activity edges that specify control flow and data flow from and to other nodes. An action will not begin execution until all of its input conditions are satisfied. The completion of the execution of an action may enable the
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