"hstang" wrote : (...) Now it would help make discussions more interesting if you can tell me why you think "having many SLSBs would be a burden for the AS?" Ok, sorry for the vague question :P Ok, regarding performance. Its just a guess, but a SLSB with all the interceptors it has (tx,security etc...) is a bit heavy in terms of processing time and memory usage than a simple managed bean. Regarding architecture, its just a question about the granularity of our apps, we use the approach I was talking before, may not be the best, may not be right, and of course I'm willing to change, it was just a question about how could this shift in terms of granularity would impact on our apps. Not trying to create any problems, just seeking some orientation. Regards View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4012587#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...