The Common Navigator framework provides a general-purpose extensible viewer that allows clients to contribute content, menus, actions, filters, sorting, and drag and drop extensions in a generic way. IBM contributed the framework as part of the Web Tools Project (WTP). Many clients of the framework already exist, including several in the WTP (J2EE, Web Services) and the newly formed Data Tools Project (DTP). The framework allows clients to add new children to existing elements, configure the retargetable actions and view menu options based on the selection, add new filters, add new DND handlers, and contribute sorting strategies for contributed content. The base contribution will provide Resource and Java extensions for clients to use without need for further customizaiton. Other contributions from either WTP or DTP will include extensions for enhanced EMF models of resources (such as J2EE deployment descriptor or WSDL files) and logical representations of local/remote servers in one integrated view. Users may configure the extensions which are shown in their specific viewer instance in order to better focus the contents of the viewer to the userÂ’s specific tasks. Vendors that build on either WTP or DTP will be able to contribute further value-add extensions seamlessly. The proposed talk will cover the design of the Common Navigator framework as it appears in the Platform/UI component for 3.2. The talk will describe the framework at a high level, and then demonstrate the process to build an extension. Attendees should leave with a better understanding of the intent of the framework and with a working knowledge of how to build an extension. Attendees of the talk will derive more value if they have an understanding of how to develop extensions for the Eclipse Platform and specifically the basic constructs necessary to build a basic navigational viewer. (Presentation Slides)