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INTRODUCTION
TO
TRANSACTION PROCESSING
SYSTEM
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EXAMPLES
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Advantages of TPS
Rapid Processing
Reliability
Standardisation
Controlled access
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Disadvantages in Real Time TPS
CONCURRENCY
ATOMICITY
Disadvantages in Batch TPS
CHEQUE CLEARANCE
BILL GENERATION
CREDIT CARD TRANSACTIONS
The disadvantage is that there is a chance of double
booking.Also, transaction processing systems need to use
directacess files, serial access media such as magnetic tapecannot
be used.
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ORGANISATIONS
EXPECTATION FROM
TRANSACTION PROCESSINGSYSTEM
Process data generated by and about transactions
Maintain a high degree of accuracy and integrity
Produce timely documents and reports
Increase labour efficiency
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Continued
Help provide increased service
Help build and maintain customer
loyalty
Achieve competitive advantage
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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
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Transaction Processing Systems
Various TPS Technologies
Some TPS Technologies Online Transaction Processing (OLTP)
Allows managers to run client-server transactions to obtainsome
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 sendsa query to
the data warehouse to record information aboutwhat happened (e.g.,
customer checked out)
Customer integrated systems
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FILES IN TPS
MASTER FILE
TRANSACTION FILES
REPORT FILE
WORK FILE
PROGRAM FILE
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HARDWARES FOR TPS
PHYSICAL ARTIFACTS AND
TECHNOLOGY
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TRADITIONAL TPS WERE CENTRALIZEDAND RUN ON A MAINFRAME
TODAY
MAINFRAMESCLIENT/SERVER SYSTEM
CLUSTER OF SERVERS, EACH
SERVER RUNNING MULTIPLE
PROCESSORS
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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
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Transaction Processing Systems
Typical Tasks
POS
Terminal
Terminal
File
ProductProcessing
System
Inventory
Files
DepartmentSales Files
CustomerMakes a
Purchase
MasterFiles
