SmartDraw UML Center

Object Diagrams
Object diagrams describe the static structure of a system at a particular time. They can be used to test class diagrams for accuracy.

Use Case Diagrams
Use case diagrams model the functionality of system using actors and use cases.

Sequence Diagrams
Sequence diagrams describe interactions among classes in terms of an exchange of messages over time.

Collaboration Diagrams
Collaboration diagrams represent interactions between objects as a series of sequenced messages. Collaboration diagrams describe both the static structure and the dynamic behavior of a system.