there is a nice sticky post at the top of this forum about the data model. It is for 3.1 but mostly the same for 3.2 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073126#4073126 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4073126