EMF Views is an Eclipse plugin that brings the concept of database views to the modeling world
JTL is an EMF-based tool that allows you to design and manipulate models, maintain consistency and synchronize software artifacts, keep traceability during design.
The MegaM@Rt2 Eclipse IDE bundles together a number of Eclipse-based MegaM@Rt2 tools, namely:
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.