The MoDisco tool provides an extensible framework to develop model-driven tools for existing software modernization.
The ATL model transformation language provides ways to produce a set of target models from a set of source models.
NeoEMF is a model persistence solution designed to store models in several kind of NoSQL datastores. It is fully compatible with EMF, making it easy to integrate into modeling applications.
EMF Views is a model view framework coming with languages to define viewpoints and obtain corresponding views on potentially heterogeneous sets of models.