next up previous contents
Next: Package Diagram Up: Activity Diagram Previous: Activity Diagram

Commentary

Activity diagrams are used to specify use-cases and in operations implementations. They show the sequence of activities in algorithm implementations. Generic diagrams can have branching controlled by guards. Completion of one activity may automatically (trigger-less) lead to another activity. Send clauses may send action messages to trigger other activities. UML 1.3 no longer uses ^ for send clauses. Start pseudo-activity may send an action message. Similarly an action message may take to the stop pseudo-activity.



Ananda Amatya
11/3/1999