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INTRODUCTION TO TRANSACTION PROCESSING SYSTEM

INTRODUCTION TO TRANSACTION PROCESSING SYSTEM. EXAMPLES. Advantages of TPS. Rapid Processing Reliability Standardisation Controlled access.

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INTRODUCTION TO TRANSACTION PROCESSING SYSTEM

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  1. INTRODUCTIONTOTRANSACTION PROCESSING SYSTEM

  2. EXAMPLES

  3. Advantages of TPS Rapid Processing Reliability Standardisation Controlled access

  4. The disadvantage is that there is a chance of double booking. Also, transaction processing systems need to use direct acess files, serial access media such as magnetic tape cannot be used. • Disadvantages in Real Time TPS • CONCURRENCY • ATOMICITY • Disadvantages in Batch TPS • CHEQUE CLEARANCE • BILL GENERATION • CREDIT CARD TRANSACTIONS

  5. ORGANISATION’S EXPECTATION FROM TRANSACTION PROCESSING SYSTEM • Process data generated by and about transactions • Maintain a high degree of accuracy and integrity • Produce timely documents and reports • Increase labour efficiency

  6. Continued…… • Help provide increased service • Help build and maintain customer loyalty • Achieve competitive advantage

  7. Aspects of TPS relevant to “A large retail company” • Real-time transaction processing • Manual transaction systems • Components of a TPS • Credit card sales transactions • Database and files

  8. Transaction Processing SystemsVarious TPS Technologies • Some TPS Technologies • Online Transaction Processing (OLTP) • Allows managers to run client-server transactions to obtain some information of interest e.g. CICS • Web-based Transaction Processing • Similar to OLTP • Allows managers to run transactions via the web • Object-Oriented Transaction Monitors (OTM) • Objects that monitor transactions in web-based applications • When an activity happens within a web site, the object sends a query to the data warehouse to record information about what happened (e.g., customer checked out) • Customer integrated systems

  9. FILES IN TPS MASTER FILE TRANSACTION FILES REPORT FILE WORK FILE PROGRAM FILE

  10. HARDWARES FOR TPSPHYSICAL ARTIFACTS AND TECHNOLOGY

  11. TRADITIONAL TPS WERE CENTRALIZED AND RUN ON A MAINFRAME • TODAY… MAINFRAMES CLIENT/SERVER SYSTEM CLUSTER OF SERVERS, EACH SERVER RUNNING MULTIPLE PROCESSORS

  12. Transaction Processing SystemsTPS SOFTWARES • SOCIAL SOFTWARES • ANTI-SPYWARE • PRIVACY-INVASIVE SOFTWARE • CUSTOMER INTEGRATED SOFTWARES e.g.P18 • SERVICE ORIENTED SOFTWARES e.g.SAT • BROKERAGE SOFTWARES

  13. Customer Makes a Purchase Inventory Files POS Terminal Terminal File Product Processing System Department Sales Files Master Files Transaction Processing SystemsTypical Tasks

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