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February 22, 1993


By CBR Staff Writer

As expected, Unix System Laboratories Inc has announced a new release of its Tuxedo transaction processing system, to which it has added further extensions for interoperability and distributed computing. Tuxedo now includes an X/Open Co Ltd-compliant transaction processing application programming interface, XATMI, a Cobol migration interface, an enhanced message queuing system and dynamic link libraries. The XATMI interface provides multi-system communication links between applications and transactions running under different transaction processing environments. The Cobol migration interface recompiles IBM Corp Cobol-based MVS and CISC/6000 applications so that they can run on Tuxedo-based systems. CISC/6000 is an implementation of IBM’s traditional transaction processing environment overlaid on Transarc Corp’s Encina monitor. The message queuing subsystem, /Q, enables Tuxedo to per-form long-running, time-delayed and event-driven transactions by writing messages to disk. Once the message is written to disk, completion of the request is guaranteed in case of system failure, Unix Labs claims. Dynamic Link Libraries provide desktop client access to Tuxedo from Microsoft Corp Windows and OS/2 environments. Unix Labs will release further interoperability extenstions later this year, including links to the IBM IMS network database management system, and transaction co-ordination with CISC/6000 using IBM’s LU6.2 protocol and terminal emulation software, which enables mainframe applications to access Tuxedo without the need for code changes.

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