CICS-to-IMS applications—asynchronous processing

In asynchronous processing, the intersystem session is used only to pass an initiation request, together with various items of data, from one system to the other. All other processing is independent of the session that is used to pass the request.

The two application programming interfaces available in CICS® for asynchronous processing are:
  1. The START and RETRIEVE interface
  2. The SEND and RECEIVE interface.