DBMS supporting graph, document, full-text and geospatial models
oracle pl/sql based tools for design development and maintenance
an Open Source BPMN 2.0 / DMN 1.1 Modeler
A Database System for Metamodeling and Method Engineering
ER Databese Model
Imixs Workflow - the open source business process management
Java implementation of FQL
AgilPro is an Eclipse based business process modeling suite