Enterprise IT Consultant Views on Technologies and Trends  Dec 2
2011   3:08AM GMT  Message Oriented Middleware, the key behind
ESB  Posted by: Sasirekha R  Message Oriented Middleware, the
key behind ESB  Message oriented middleware (MOM), the key
behind ESB (Enterprise Service Bus), offers flexibility in
application development. MOM permits time-independent responses
because it operates in an asynchronous mode.  MOM expands inter-
component communication by allowing a client to send a request
for service and then continue processing without having to wait
for a response. Messaging does not impose the requirement of
waiting for a response, as with an RPC. If no response is
required, one need not be sent.   MOM products typically have a
feature called message queuing. Message queues allow clients and
servers to run at different times. All communication happens by
either putting messages into or taking messages out of queues.
 Two types of message queues exist, store and forward, and
publish/subscribe.  1. Sto