# Component Summary

The section lists the components that are used for this sample.

- `SXIIVPRR`: the JCL member that submits the request initiator
- `SXICITRR` : the IMS transaction ID of the request initiator
- `SXICIRR1`: the IMS COBOL application program
- `CALLOUT-REQUEST`: Substation ES trigger service identification for initiating requests
- `SXJRRRCP`: the JCL member that submits the EMS Consumer/Producer
- `SXJ3RRCP`: the C Consumer/Producer application program, which receives a request message from EMS server and produces a reply message

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