Hi.
here is a web address to the t dub adaptive project by a professor in the
netherlands.
i have the evaluation cd.
it reads all diagrams and gives text feedback.
tells you where nodes, connections, are.
it is a trial version at the moment.
he is funded by the european union from   october 2001 to october 2004, then
the funding runs out.
then he will release the final version in the market place.
here is the url:

http://projects.fnb.nl/tedub/default.htm
cheers Marvin.