Heiko, Now I see your point, my apologies for the misunderstanding. The option you propose is indeed more stable concerning the schema when stuff is implemented in newer versions of jBPM. I do like this approach very much (it reminds me of Spring ;-) My only concern is with the GPD: how hard will it be to maintain these new 'stock' activities? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4161436#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...