TPSAnd its

characteristicsH I L P I

B H A D O U R I A

&

N V E S HS H A R M A

Transaction

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Debits and credits

Electronic funds transfer

Real estate transaction

The process whereby rights in a unit of property is transferred between two or

more parties.

Transaction cost, a cost incurred in making an exchange

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T r a n s a c t i o n

P r o c e s s i n g

S y s t e m

A transaction is an event thatgenerates or modifies data that iseventually stored on aninformation system.

Transaction processing systemscollect, store, modify and retrievethe transactions of anorganization.

History1960The first transaction processing systems was American Airlines SABRE system,which became operational in 1960.Designed to process up to 83,000 transactions a day, the system ran on two IBM7090 computers.

SABRE was migrated to IBM System/360 computers in 1972, and became an IBMproduct first as Airline control Program (ACP) and later as Transaction ProcessingFacility (TPF).

In addition to airlines TPF is used by large banks, credit card companies, andhotel chains.

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"Real time systems attempt to guarantee an appropriate response to a stimulus orrequest quickly enough to affect the conditions that caused the stimulus.“

Each transaction in real-time processing is unique; it is not part of a group oftransactions

Batch processing is execution of a series of programs (jobs) on a computer withoutmanual intervention. Several transactions, called a batch are collected and processedat the same time.The results of each transaction are not immediately available when the transaction isbeing entered; there is a time delay.

Of TPS

I . Fast Per formanceI I . Measurement

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