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Horstmann, Alexandre de Pellegrin and many contributors

Support: SourceForge Project Page, GitHub Code Repositoryĭeveloper: Cay S.

Restores workspace on startup with opened documents.

Maximum drawing space by hiding tools bar.

Supports diagram tool change with mouse scroll button.

Multiple diagram elements select and drag’n drop.

Supports direct links between diagrams.

Object Diagrams – use a subset of the elements of a class diagram in order to emphasize the relationship between instances of classes at some point in time.

State Machine Diagrams – models the behaviour of a single object, specifying the sequence of events that an object goes through during its lifetime in response to events.

Sequence Diagrams – a form of interaction diagram which shows objects as lifelines running down the page, with their interactions over time represented as messages drawn as arrows from the source lifeline to the target lifeline.

Activity Diagrams – displays the sequence of activities.

Class Diagrams – shows the building blocks of any object-orientated system.

Use cases are a way of communicating with users and other stakeholders what the system is intended to do.

Use Case Diagrams – captures the requirements of a system.

Best open source uml editors