Transaction Processing Systems

Published on June 2016 | Categories: Documents | Downloads: 38 | Comments: 0 | Views: 513
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Submitted by Aswathy t s

Transactions
 Transactions…


Basic business operations such as customer orders, purchase orders, receipts, time cards, invoices, and payroll checks in an organization Perform routine operations and serve as a foundation for other systems

 Transaction processing systems (TPS)


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 entry of accumulated transactions

Input (batched)

Output

On-line Schematic
Terminal Terminal Terminal

Output
Terminal

Immediate processing of each transaction

Terminal Terminal

Objectives of TPS
 Process data generated by and about transactions
 Maintain a high degree of accuracy  Ensure data and information integrity and accuracy  Produce timely documents and reports  Increase labour efficiency  Help provide increased and enhanced service  Help build and maintain customer loyalty

 Achieve competitive advantage

Transaction processing cycle

  




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

Original data Data collection Data edit

Data correction

Data manipulation
Data storage Document production

Control and Management Issues
 Business resumption planning


The process of anticipating and providing for disasters. The implementation of the business resumption plan. An examination of the TPS in an attempt to answer three basic questions
  

 Disaster recovery


 Transaction processing system audit


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

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