Sure, nothing stops you from using a DTO layer in Seam. I'm not quite sure I understand what you are asking? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4050694#4050694 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4050694