Dachshund is the name given to the project to develop a UML based software modeling tool. The modeling tool is designed to be used by software system designers as well as developers, and to be useful during all phases of the software life cycle. The tool will consist of a model repository, a document view of the model with an integrated diagram editor, and code-generation modules.

So what sets the dog apart from other software modeling tools out there?

open source and free
highly extensible, and tailorable to local software modeling quirks
integrated document and diagrams (may you never use M$ Word and OLE again)
generates TeX/sgml/html documentation
fast! this puppy is C/C++ compiled to real opcodes that run in your real machine
provides a framework for integrating Your development process modelTM