Would it be possible to add export variants to the diagram for Tools which can draw Graphs.
For example GraphML format.
http://de.wikipedia.org/wiki/GraphML
I use this yEd to create/view those files, http://www.yworks.com/en/products/yfiles/yed/ its very nice as it can with a click rearange a graph, and sometimes give a new insight or simply a different view on your data.