QUML wants to be a simple Java/Swing based GUI program for UML modeling. I would like to bring to users comfortable drag-drop environment for creating UML diagrams. In the future QUML could contain some kind of the scripting language (Tcl?) for work with
Web application load testing tool written in Java. Uses a central console to manage remote simulations allowing for a large number of virtual users. Can test fullblown web applications requiring cookies and complex querystring and formdata.
"Draft" provides a collaborative design environment to assist in prototyping projects - software or other - in a graphical manner. It's written in Java and provides an interactive, animated UI framework to create rich content. Emphasis is on ease of use.
OpenStory is an initiative to create an open source, extensible alternative to Vignette StoryServer with the ability to use many programming languages for writing templates and have well documented protocols.
Cbrowser is a Tcl/Tk GUI front-end to source code searching tools. It is primarily designed to work with cscope, but also works with cs. See http://cscope.sourceforge.net/ to obtain cscope, and for more information.
OpenQueue is an open protocol for publish-and-subscribe message queuing. This enables language-independent, loosely-coupled, asynchronous communications between applications on platforms supporting TCP. Similar to MQSeries or MSMQ, but open.