Transaction processing systems

Submitted by Aswathy t s

TransactionsTransactions…

Basic business operations such as customer orders, purchase orders, receipts, time cards, invoices, and payroll checks in an organization

Transaction processing systems (TPS) Perform routine operations and serve as a

foundation for other systems

Batch vs. On-Line Transaction Processing Two types of TPS:

Batch processing A system whereby business transactions are

accumulated over a period of time and prepared for processing as a single unit or batch

On-line transaction processing (OLTP) A system whereby each transaction is processed

immediately, without the delay of accumulating transactions into a batch

Batch Schematic

Data entryof accumulated

transactions

Input(batched)

Output

On-line Schematic

Output

Terminal

Terminal

Terminal

Terminal

Terminal

Terminal

Immediateprocessingof eachtransaction

Objectives of TPSProcess data generated by and about

transactionsMaintain a high degree of accuracyEnsure data and information integrity and

accuracyProduce timely documents and reportsIncrease labour efficiencyHelp provide increased and enhanced serviceHelp build and maintain customer loyaltyAchieve competitive advantage

Transaction processing cycle

Data collection Data editing Data correction Data manipulation Data storage Document production

Datacollection

Dataedit

Datamanipulation

Datastorage

Documentproduction

Datacorrection

Original data

Control and Management IssuesBusiness resumption planning

The process of anticipating and providing for disasters.

Disaster recovery The implementation of the business resumption plan.

Transaction processing system audit An examination of the TPS in an attempt to answer

three basic questions Does the system meet the business need? What procedures and controls have been established? Are the procedures and controls being properly used?