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.