Types of UML Diagrams

Types of UML Diagrams51Testing软件测试网K9~@W's

Each UML diagram is designed to let developers and customers view a software system from a different perspective and in varying degrees of abstraction. UML diagrams commonly created in visual modeling tools include:51Testing软件测试网zy5['QoPmOh"a b8B

Class Diagrammodels class structure and contents using design elements such as classes, packages and objects. It also displays relationships such as containment, inheritance, associations and others. 51Testing软件测试网Ib[u-T

InteractionDiagrams

• Sequence Diagramdisplays the time sequence of the objects participating in the interaction. This consists of the vertical dimension (time) and horizontal dimension (different objects).
• Collaboration Diagramdisplays an interaction organized around the objects and their links to one another. Numbers are used to show the sequence of messages.

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b3BZ0Activity Diagramdisplays a special state diagram where most of the states are action states and most of the transitions are triggered by completion of the actions in the source states. This diagram focuses on flows driven by internal processing.

yX/|:e0OQH0Physical Diagrams 

• Component Diagramdisplays the high level packaged structure of the code itself. Dependencies among components are shown, including source code components, binary code components, and executable components. Some components exist at compile time, at link time, at run times well as at more than one time.
• Deployment Diagramdisplays the configuration of run-time processing elements and the software components, processes, and objects that live on them. Software component instances represent run-time manifestations of code units.