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UML 2 Activity and Action Models, Part 5: Partitions



Conrad E. Bock


This is the fifth in a series introducing the activity model in the Unified Modeling Language, version 2 (UML 2), and how it integrates with the action model. The first article gives an overview of activities and actions, while the next three cover actions generally, control nodes, and object nodes. This one describes partitions, which are a way of grouping actions that have some characteristic in common. In particular, they can relate actions to classes that are responsible for them, and highlight the abstraction that activities provide for interaction diagrams and state machines.
Journal of Object Technology


action model, activity model, control and data flow, process model, UML 2


Bock, C. (2004), UML 2 Activity and Action Models, Part 5: Partitions, Journal of Object Technology, [online], (Accessed July 13, 2024)


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Created April 1, 2004, Updated November 10, 2018