Friday, March 11, 2011

TYPES OF INFORMATION SYSTEMS

       



The 'classic' view of Information systems found in the textbooks of the 1980s was of a pyramid of systems that reflected the hierarchy of the organization, usually Transaction processing systems at the bottom of the pyramid, followed by Management information systems, Decision support systems and ending with Executive information systems at the top. Although the pyramid model remains useful, since it was first formulated a number of new technologies have been developed and new categories of information systems have emerged, some of which no longer fit easily into the original pyramid model.

 Transaction Processing Systems (TPS)
  • Is the bottom of the pyramid system of the hierarcy of the organization.
  • Automate the handling of data about business activities or transactions, which can be thought of as simple, discrete events in the life of an organization.
  • The analysis and design of TPS means focusing on the firm’s current procedures for processing transactions, whether those procedures are manual or automated.
  • Focus on current procedures implies a careful tracking of data capture ,flow ,processing and output.
  • The goal of TPS development is to improve transaction processing by speeding it up, using fewer people, improving efficiency and accuracy, integrating it with other organizational information systems .
                                         
                       http://www.subrahmanyam.com/articles/transactions/NutsAndBoltsOfTP.html



  • The transaction is processed using either your POS or EFTPOS and is sent via electronic switches.


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