NJIT

UML Activity Diagrams

Larman, Chapter 28

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Business Process Modeling

In the 1970s, Gane and Sarson developed Data Flow Diagrams to model business processes, modeling the major steps in carrying out a business activity along with the data necessary for each step. UML does not support Data Flow Diagrams, but the same purpose can be achieved with a UML Activity Diagram.

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Activity Diagram Symbols

These are the basic UML Activity Diagram symbols, as found in Visio.

The Rake symbol (not in Visio),indicates that a process is expanded in another diagram.

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Example: UML Activity Diagram

Source: Scott Ambler, http://www-106.ibm.com/developerworks/webservices/library/ws-tip-drawuml/