By "sibling" do you mean "fire and forget" - that is, the first process starts the second and then doesn't wait for it or communicate with it again? If so, then: - it's not modeled at all, but, - it's really easy to write an ActionHandler that will do this. If you want, the name of the subprocess can be in the parent process (though I don't think the graphical designer will do this yet - I think you'll have to hand-edit the XML). Check out the examples, tutorials, wiki, etc. Above all, read the User Guide... then read it again. -Ed Staub View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4060757#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...