Distributed transaction processing

Distributed transaction processing enables a CICS® transaction to communicate with a transaction running in another system. The transactions are designed and coded explicitly to communicate with each other, and thereby to use the intersystem link with maximum efficiency.

The communication in distributed transaction processing is, from the CICS side, synchronous, which means that it occurs during a single invocation of the CICS transaction and that requests and replies between two transactions can be directly correlated.

The CICS Intercommunication Guide tells you about multiregion operation and intersystem communication, and also includes some information about distributed transaction processing. Guidance information about designing and developing distributed applications is given in the CICS Distributed Transaction Programming Guide.

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