What is OLTP (online transaction processing)? - Definition from Whatis.com

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OLTP (online transaction processing)

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OLTP (online transaction processing)

OLTP (online transaction processing) is a class of program that facilitates and manages transaction-oriented applications, typically for data entry and retrieval transactions in a number of industries, including banking, airlines, mailorder, supermarkets, and manufacturers. Probably the most widely installed OLTP product is IBM's CICS (Customer Information Control System).

Today's online transaction processing increasingly requires support for transactions that span a network and may include more than one company. For this reason, new OLTP software uses client/server processing and brokering software that allows transactions to run on different computer platforms in a network.

Related glossary terms: Resource Access Control Facility (RACF), 64-bit processor, Teraplex (Teraplex Integration Center), P/390, VSAM (Virtual Storage Access Method ), real-time operating system (RTOS), SuperZap, ISPF (Interactive System Productivity Facility), scalability, Remote Job Entry (RJE)

Contributor(s): Lee Gilbert and Jan Hewitt

This was last updated in November 2005

Editorial Director: Margaret Rouse

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