Sunday 8 April 2012

Week 5. Information System.

It was the continuous of the previous topic. namely, we were going to learn about Information System more deeply this week as week.
For the beginning of the class, we learned about types and functions of the Information System.
In this blog, I would like to give types of  information systems levels with their definitions.
       We also learned about 3levels of IS. They are third level is TPS, second levels are MIS, DSS, and the first level is ESS
      



 Now, i would like to give defination of TPS. TPS captures and processes data generated perform the activities associated with transaction processing, which include the followingRecording a business activity such as a student’s registration, a customer’s order, an employee’s time-card or a client’s payment. Confirming an action or triggering a response, such as printing a student’s schedule, sending a thank-you note to a customer, generating an employee’s paycheck or issuing a receipt to a client. Maintaining data, which involves adding new data, changing existing data, or removing unwanted data. 

   The next one is Decision Support System. it is defined as An organized collection of people, procedures, software, databases and devices used to support problem-specific decision making. DSS is used when problem is complex. DSS are used to support unstructured or semi-structured problems that   require human judgment. It offers the potential to generate higher profits, lower costs and better products and services. DSS Often based on spreadsheet software

    The next one is Management Information System, MIS is an integrated collection of people, procedures, databases and devices that provides managers and decision makers with information to help achieve organizational goals. Roles: It provides the right information to the right person in the right format at the right time. Purpose: to help an organization achieve its goal by proving managers with insight into the regular operations of the organization so that they can control, organize, and plan more effectively.

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