To further explain the unification of type and role into one entity, look t the example below: As is | TaskService.addTaskRole(73, "123-CallHome", RoleType.USER, "Heiko"); | Could be | TaskService.addTaskRole(73, "123-CallHome", new UserAssociation("Heiko")); | with | | class UserAssocation extends/implements RoleAssociation | { | type = RoleType.USER; | role; | } | | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4210622#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...