Hi ronald, sorry if a seem impatient, i just couldn't wait to read ideas. Thanks for considering my request. I'm asking because i already have a database with a User table. But i haven't yet implemented the group part. If i understood right, "all" i have to do is to make changes in the classes in the identity.jar and in the hibernate files. I'm thinking about using a different assigment handler for each group. Does it seems right to you ? Best regards, O.M. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4065285#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...