Data Modeling with Open Source Open System Architect

Open System Architect (OSA) is an Open Source Application used for modeling a system. Open Sytem Architect currently supports data modeling (physical and logical) with UML in the works.  The free factor makes OSA particularly interesting for students but OSA is powerful enough to compare favorably with products costing thousands of dollars.

Some Features

• Workspace/project environment
• Platform independent
• ERD (Logical & Physical)
• ERD supports inheritance
• ERD validation
• UML in the works
• SQL editor
• Cross Database
• Open source/open standards

Website: http://www.codebydesign.com

Download: http://www.codebydesign.com/SystemArchitect/downloads/