CETIS has developed a free, open source, cross platform ArchiMate modelling tool, Archie, which is now available for download @ http://archi.cetis.ac.uk/.
The tool creates models using the ArchiMate modelling language. As described on the site, the tool has been developed primarily for the “newcomer to ArchiMate and not an experienced modeller. They do not intend to become a “modeller” per se, nor to be an “Enterprise Architect” but to borrow and apply techniques or Architecture modelling in piecemeal (often opportunistic) IT developments in a mixed HE/FE institution. The Archi user is interested in connecting IT developments to institutional strategy . . .”
The team would really welcome feedback on the tool and have set up a forum area on the site for community contributions. So, if you have any thoughts, please post them into the forum. They will all help towards further development of the tool and user guides.