Activity Diagram



  1. Activity diagrams are the object oriented equivalent of flow charts and data flow diagrams from structured development
  2. Activity diagrams describe the workflow behavior of a system
  3. The process flows in the system are captured in the activity diagram
  4. Activity diagram illustrates the dynamic nature of a system by modeling the flow of control from activity to activity
  • An activity diagram contains activity states. An activity state represents the execution of a statement in a procedure or the performance of an activity in a workflow
  • An activity state waits for the completion of its computation. When the activity completes then execution proceeds to the next activity state within the diagram
  • When to use Activity Diagrams?
    1.  a complex operation
    2.  a complex business rule
    3.  a single use case
    4.  several use cases
    5.  a business process
    6.  software processes
element of activity diagram





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