The Model Observatory is an initiative to collect, curate, and share models and knowledge about models in the software enineering domain (think UML, BPMN, KAOS, and similar notations). The mission of the Model Observatory is to collect, store, index, retrieve, and distribute conceptual models, and it aspires to further research in Model Based Software Development by providing publicly available rich data sets to validate and benchmark new technologies and algorithms.
The Model Observatory resembles many other model repositories in terms of goal and mission, but it has the ambitionto supersede them all, by far, in may dimensions: number, size, and quality of models; usability and availability of the catalog; quality and richness of meta data; and, most importantly, all models shall be free and available in machine-readable formats.
While the tool platform is still under construction, we have already spawned the Free Models Initiative which produced a FMI Model Index.