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UML Activity Diagram Basics
online.visual-paradigm.com/diagrams/tutorials/activity-diagram-tutorial/Yapay zekadan makale özeti
- Core Elements
- Activity diagrams describe service coordination at different abstraction levels
- Initial state shows entry point, final state shows end of activity
- Flow Final node terminates specific flows in UML 2.0
- Actions represent single atomic steps within activities
- Flow Elements
- Control flows show transitions between activity states
- Object flows indicate interactions with objects
- Decision nodes allow branching based on conditions
- Merge, fork, and join nodes control concurrent flows
- Advanced Features
- Swimlanes group activities by categories like roles or departments
- Time events flow when time expression is true
- Object nodes indicate available instances of classifiers
- UML 2.0 supports multidimensional swimlanes
- Usage
- Activity diagrams show 'how' system works
- Often used in pairs with use cases
- Help understand high-level system execution behavior
- Document business roles and responsibilities using swimlanes