My dream: “Model once open everywhere” seems now a little bit closer.
The Model Interchange Working Group (MIWG) has released a test suite (comprising 16 UML and/or SysML test models covering around 60% of the full UML specification) to “demonstrate model interchange among MOF-based tools that implement modeling languages such as UML, SysML and UPDM and use XMI as the interchange standard”.
As stated in the group web page, “The objective is to enable the public at large to assess model interchange capability of the modeling tools by comparing the vendor XMI exports to the expected reference XMI file for each test case”. So far the working group includes Artisan® Studio, RSx, IBM Rhapsody, MagicDraw, Modelio and Enterprise Architect.
Definitely a big step in the right direction.