International Business Machines Corporation

Sherry H Li

George S Denny

Mark Neal Ziebarth

Robert Shiwen Lai

Hoang Minh Nguyen

Joseph F Murphy

A communication system includes a network of transaction management systems having the same or different operating system software versions. Each transaction management system includes an associated input device for generating a transaction request or message switch. The transaction requests and message switches generated by a particular input device can be executed by the transaction management system associated with the device, and alternatively by remote transaction management systems in the network. To provide for remote execution of transaction requests and message switches, the system includes means for generating transaction request messages and message switch messages that have prefixes which can be dynamically extended as required for use by the appropriate remote transaction management system, without requiring upgrading the software of the remote system.

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Morgan Hill, CA, United States of America

Sherry H Li