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.

PADRE

Performance-driven softwAre moDel Refactoring framEwork (PADRE) 

PauWare

PauWare engine is a Java API, i.e., a set of Java classes and interfaces making up an execution engine for State Chart XML (SCXML) and UML State Machine Diagrams