
40 Developing Web Services Using CICS, WMQ, and WMB
3.1 Overview of CICS as a service provider
When CICS is a service provider, essentially CICS resources are made available
or “exposed” to a request from a client connection from within or external to the
enterprise. The request is passed through a CICS pipeline resource to a target
application program. The response from the application is then passed back
through the same pipeline.
An existing COMMAREA-based application can be exposed as a service
provider without any application changes.
Figure 3-1 summarizes the role of CICS as a service provider where the
following operations are performed: ...