CHESS implements the CHESS UML/SysML profile, a specialization of the Modeling and Analysis of Real-Time and Embedded Systems (MARTE) profile
Collaboro makes language development processes more participative: both developers and users of the language can collaborate together to create and evolve it.
EMF Views is an Eclipse plugin that brings the concept of database views to the modeling world
Constellation organizes and manages collaborative (distributed) World Wide Modeling projects,
NeoEMF is a project that aims at handling large EMF models in an efficient and scalable way.