HAWK
Hawk Server provides easy and fast Indexing and Querying for several standards Models such as UML, BPMN and Archimate. It is an open-source scalable model indexing tool issued under the Eclipse Public License 2.0. It was developed at the Mondo research project for Model Driven Engineering (MDE) large complex systems. Hawk accepts repositories from several technologies such as Ecore, BPMN, Modelio and UML2.