I have a little experience from a while back. I’d be curious to know what your management’s stated goal is for it. Simple diagraming, requirements tracing, documentation generation, code generation, all of the above? My experience is that in order for it to provide any more utility than Visio, it requires much more effort than it’s worth. And it’s a much worse diagramming tool.

The believers will claim if you flesh out your system model enough, it can generate at least skeleton code for you. I sincerely believe getting your model to this level of detail and scope would take significantly more time than just writing the code yourself.