UML Tutorials - Herong's Tutorial Examples - Version 1.01, by Dr. Herong Yang
Activity Diagram - Merge Notation
This section describes the Merge Notation used in a UML Activity Diagram. A Merge Notation represents a merge point where alternate execution paths meet and continue.
A Merge Notations is a graphical notation used in a UML Activity Diagram to represent a merge point where multiple alternate execution paths will meet and continue.
A Merge Notation is drawn as a small diamond shape with multiple incoming control flows and on outgoing control flow.
For example, the merge point where "Ship Order" and "Cancel Order" meet
can be drawn as a Merge Notation in a UML activity diagram as shown below:
Last update: 2014.
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