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.
The figuresummarizes the role of CICS as a service provider where the following operations are performed:
CICS as a service provider
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