PUBLIC MARKS with tags tool & eclipse

Papyrus is a dedicated tool for modelling within UML2. This open source tool is based on the Eclipse environment.

The Metatomix Semantic Toolkit is a set of Eclipse plugins to allow developers to create and manage ontologies based on the OWL and RDF standards.

The Eclipse Visual Editor project is a vendor-neutral, open development platform supplying frameworks for creating GUI builders, and exemplary, extensible tool implementations for Swing/JFC and SWT/RCP. These tools are exemplary in that they verify the utility of the Eclipse Visual Editor frameworks, illustrate the appropriate use of those frameworks, and support the development and maintenance of the Eclipse Visual Editor Platform itself.