Obeo - UML Designer

Commercial

UML Designer is a graphical tool to edit and vizualize UML 2.4 models.
This designer is free (open-source with EPL license).

UML Designer is a graphical tool to edit and vizualize UML 2.4 models.

It uses the standard UML2 metamodel provided by Eclipse Foundation and it implements the following generic UML diagrams:
- Package Hierarchy
- Class Diagam
- Component Diagram
- Object Diagram
- Composite Structure Diagram
- Deployment Diagram
- Use Case Diagram
- Activity Diagram
- State Machine
- Sequence Diagram
- Profile Diagram

As it is based on Sirius, it provides an easy way to combine UML with domain specific modelling. You can extend the provided diagram definitions and seamlessly work on both UML and DSL models at the same time.

http://marketplace.obeonetwork.com/module/uml#community