Some may find tutorial videos or the ADL Workbench I have posted interesting.
The application is open source (SVN), compiles under the latest 7.1 release, and uses Vision2 for the front end. We have got it working reasonably well on Windows, Mac (although with GTK annoyances) and Linux.
Apart from the use of Eiffel, Vision, Docking, lots of agents and other Eiffelisms, it demonstrates 'multi-level modelling', in which domain models are modelled on top of the information model, not as part of it, expressed as archetypes.
- thomas beale