an Open Source BPMN 2.0 / DMN 1.1 Modeler
Specifications for TRAK architecture views
MDG for Sparx' Enterprise Architect to Create TRAK arch. descriptions
A canvas library for generating technical drawings
A free cross-platform editor for the DRAKON visual language.
"black technology" will improve development productivity by 1.5 to 5
An editor for the specification of Graphol ontologies
A modeling tool for software engineers (OO)
Prototype editor for the SDEM Mapping Language
Uses GraphViz to draw UML class diagrams
vipera is an application designer for Python