Thanks! The reason for the dissociation (in three tiers) is that we are gone be evaluated separated. Is like two projects that connect each other. You may say "ok, use jsf backing beans", but seam rulez :) (XML hand-writing not) I'm gonna see what @EJB brings and so on. For the second doubt: I definitely need to read the docs and search more for the subject. Regards, Tiago Cavaleiro View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4063102#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...