Java Messaging service ...

It was just by chance i came across an article on JMS and never knew it can be so useful in client - server application.

JMS helps us in implementation of distributed systems with efficiency. Following diagram explains the architecture of JMS.

Many of the other advantages of JMS include abstraction and system scaling but then it can lead to some complications too.

You can go through following url for more details on JMS.
http://www.javaworld.com/javaworld/jw-10-2002/jw-1025-jms.html?page=1