DEFT (general)

DEFT for UML Specification

UML Specification example files


DEFT has been developed for Windows. Java 1.6 is required.

If you want to use LibreOffice as integrated editor, please install LibreOffice up to version 3.3.2. Later versions will not work, unfortunately.


You can also build DEFT yourself. The sources are available under

You will need the Eclipse Modeling Tools for Indigo with Subclipse to download and build DEFT from source.

Note: If you know SVN and Eclipse you might want to use the command line client to get the DEFT source code from Sourceforge, because it is much faster.