I never said "basic", I said "fundamental". The difference is that a basic or simple question can be answered in a sentence/paragraph or two, whereas a fundamental question requires several pages of text. Consider question 3. The simple answer is "yes." The more complicated answer is for me to enumerate the various ways that this can be accomplished, giving examples of each way. I have written such text. It was over 60 pages long. But let my try an intermediate answer from which we can start a dialog: Whether you write a web application using JSPs/servlets, or write a rich client, you can access EJBs in the app server using JNDI to look them up. This code would all be in Java. Alternately, you could deploy Web services to the app server and look them up using the WSDL. In this case the client can be written in Java/, C#, etc. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4050695#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...