Open Source Equivalents to Erwin

Question

I am aware of CA/Erwin community edition but it is constrained to 25 objects. I have also tried modeling in Visio which was painful. Curious to learn of any open source equivalents that not only pictorially allow for relational modeling but can also generate DDL.

Answer 1

Look at Argo UML.

Answer 2

Pickings are slim, but Mogwai seems to be a good choice:

http://mogwai.sourceforge.net/

Answer 3

Have you seen this list of free and open source database modelers ?

Answer 4

Open System Architect (OSA) is an application used for modelling a system. OSA currently supports data modelling (physical and logical) with UML in the works. The unique thing about OSA is that it is an Open Source product licensed under the General Public License (GPL). The free factor makes OSA particularly interesting for students but OSA is powerful enough to compare favourably with products costing thousands of dollars.