EJB 3.0 entity beans are modelled after Hibernate and other POJO-based ORM solutions, and the Hibernate team was deeply involved in writing the new spec. And, of course, in JBoss, the EJB 3 persistence implementation is just a very thin wrapper around Hibernate. At a high level there is very little difference between using Seam with Hibernate or EJB3 persistence, though obviously Hibernate is more feature-rich. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3960490#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...