here are a few use case we need to answer for the groups: - notion of JavaEE security: the membership of a user for a group should imply a JavaEE role. - notion of business role: the membership of a user for a such group has a business semantic. - notion of community: the membership of a user for such group implies that he can share a specific business domain with users of the same community. - notion of common profile: the membership of a user for such a group will overwrite or provide default values for the user's profile - notion of preferences: the membership of a user for such a group will make him use a specific customization of a portlet (furthermore customizable or not) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061519#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...