WebSphere MQ and message queuing

WebSphere MQ allows application programs to use message queuing to participate in message-driven processing. Application programs can communicate across different platforms by using the appropriate message queuing software products. For example, OS/400 and z/OS applications can communicate through WebSphere MQ for iSeries and WebSphere MQ for z/OS respectively. The applications are shielded from the mechanics of the underlying communications.

WebSphere MQ products implement a common application programming interface known as the message queue interface (or MQI) whatever platform the applications are run on. This makes it easier for you to port application programs from one platform to another.

The MQI is described in detail in the WebSphere MQ Application Programming Reference.