WS-Notification
WS-Notification enables web services to use the publish and subscribe messaging pattern.
WS-Notification became a stabilized feature in WebSphere Application Server v8.5.5.
We use publish and subscribe messaging to publish one message to many subscribers. In this pattern a producing application inserts (publishes) a message (event notification) into the messaging system having marked it with a topic that indicates the subject area of the message. Consuming applications that have subscribed to the topic in question, and have appropriate authority, all receive an independent copy of the message published by the producing application.
Use WS-Notification for publish and subscribe messaging for web services Secure WS-Notification WS-Notification troubleshooting tips Events and service-oriented architecture: The OASIS Web Services Notification specifications OASIS Web Services Notification (WSN) technical committee