A cross-platform integrated CASE system
an Open Source BPMN 2.0 / DMN 1.1 Modeler
A Database System for Metamodeling and Method Engineering
The Umple Model-Oriented Programming Technology
Domain-Driven Design sample application
Open-source code generator for Simulink/Stateflow
ER Databese Model
Very simple entities relation attributes tool with export
A free cross-platform editor for the DRAKON visual language.
"black technology" will improve development productivity by 1.5 to 5
A modeling tool for software engineers (OO)
Code generation from UML to any language (Java, Objective-C, PHP...)