DocBook Editing and Processing for Eclipse
yEdGen can open a flow chart and generate ANSI C code from it.
Pure Trait-based Programming on the Java Platform
Cress is a comprehensive toolset for graphical service/workflow design
SQL front end for data administration and quick query hacks
Generator's generator (JSON templates plus automatic DSL generation)
Semantic researcher networking
Clean, powerful templates for Java
Node.js & Java development in Eclipse-based IDE
An Eclipse plugin that extends pure::variants
Plugin for MagicDraw to support MBSE with SysML
Deba Eclipse Utility Plugin
Plugin based multi-purpose dev tool.
An open source gui frontend application for GNU Octave
Editor for SISO standard compliant federation agreements
Open-source lightweight java workflow engine