INTRODUCTION TO TRANSACTION PROCESSING SYSTEM

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Presentation transcript:

INTRODUCTION TO TRANSACTION PROCESSING SYSTEM

EXAMPLES

Rapid Processing Reliability Standardisation Controlled access Advantages of TPS Rapid Processing Reliability Standardisation Controlled access

Disadvantages in Real Time TPS 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

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

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

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

Transaction Processing Systems Various 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

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

HARDWARES FOR TPS PHYSICAL ARTIFACTS AND TECHNOLOGY

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

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

Transaction Processing Systems Typical Tasks POS Terminal File Product Processing System Inventory Files Department Sales Files Customer Makes a Purchase Master

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