My version of "production" varies quite a bit from that of an e-commerce site, and that itself is quite different than what a bank might expect. At any rate, Seam performs about as well as your JSF and EJB implementations. The overhead of Seam itself is pretty miniscule compared to the (large) overhead of JSF. Seam also makes caching parts of the output easy to do, so if you use that feature, it should be faster than the average vanilla JSF app. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4022571#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...