Messaging

EMail and Instant Messaging

Application Integration approach

Use Messaging to transfer packets of data frequently, immediately, reliably, and asynchronously (ASynch), using customizable formats. http://www.enterpriseintegrationpatterns.com/Messaging.html

Message Oriented Middleware - MOM

Message Bus, Message Broker, Message Queue, Logging

Dec'2011: James Cook identifies 5 Message Queue patterns: Task Queue, Delayed Job, Fan Out, Message Group, RPC. He then categorizes some tools/libraries by pattern (and other params). (Includes Python-based Celery.)