EMF Views

EMF Views is an Eclipse plugin that brings the concept of database views to the modeling world

JTL

JTL is an EMF-based tool that allows you to design and manipulate models, maintain consistency and synchronize software artifacts, keep traceability during design.

Modelio

The open source modeling environment.

PADRE

Performance-driven softwAre moDel Refactoring framEwork (PADRE) 

Xamber

Xamber is a configuration tool for partitioned systems based on the hypervisor XtratuM