Mis 2

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Mis 2

  1. 1. MODULE -2 KINDS OF INFORMATION SYSTEM
  2. 2. Information system <ul><li>Information systems are implemented within an organization for the purpose of improving the effectiveness and efficiency of that organization. </li></ul>
  3. 3. Kinds/ Types of IS <ul><li>Transaction Processing system </li></ul><ul><li>Office Automation System </li></ul><ul><li>Management Information System </li></ul><ul><li>Decision Support System </li></ul><ul><li>Group Decision Support System </li></ul><ul><li>Expert System </li></ul><ul><li>Executive Support System </li></ul>
  4. 4. Transaction Processing system <ul><li>A TPS is a information system that records company transaction…. </li></ul><ul><li>A transaction is defined as a exchange or cross-functional information system between two or more business entities….. </li></ul><ul><li>Events that occur as part of doing business like sales, purchases, refunds and payments.. </li></ul><ul><li>Eg: Ticket reservation </li></ul>
  5. 5. Characteristics of TPS <ul><li>It records Internal and external transaction for a company. </li></ul><ul><li>It performs routine, repetitive task. </li></ul><ul><li>Transaction can be recorded in online </li></ul>
  6. 6. Process of TPS Transaction Process Enter data Validate data Validated Results Generate Output Facilitate Queries
  7. 7. Process of TPS <ul><li>There are six steps in processing a transaction ……….. </li></ul><ul><li>Data entry </li></ul><ul><li>Data capture </li></ul><ul><li>Data validation </li></ul><ul><li>Processing and revalidation </li></ul><ul><li>Storage </li></ul><ul><li>Output generation </li></ul><ul><li>Query support </li></ul>
  8. 8. Office Automation System <ul><li>OAS means the complete integration of… </li></ul><ul><li>Word processing, </li></ul><ul><li>Electronic filing, </li></ul><ul><li>Diary management and </li></ul><ul><li>Communication, including electronic mail, telex and fax…. </li></ul>
  9. 9. Components of OAS <ul><li>Function </li></ul><ul><li>Software package </li></ul><ul><li>Software type </li></ul><ul><li>Word processing </li></ul><ul><li>Electronic Spreadsheets </li></ul><ul><li>Graphics </li></ul><ul><li>Project management </li></ul><ul><li>Electronic Mail </li></ul>
  10. 10. Advantages of OAS <ul><li>Increased productivity </li></ul><ul><li>Improved quality of work </li></ul><ul><li>Improved organizational effectiveness </li></ul><ul><li>Better service </li></ul><ul><li>Better management control </li></ul><ul><li>Disadvantages: </li></ul><ul><li>Office staff became dependent on computers </li></ul><ul><li>OAS is expensive than manual system </li></ul><ul><li>Health problem to employees </li></ul>
  11. 11. Managemen t Information System <ul><li>According to G.B. Davis , </li></ul><ul><li>“ MIS is an integrated man/machine system for providing information to support the operations, management and decision making function in an organization” </li></ul><ul><li>MIS is a system that aid management in making , carrying out and controlling decision. </li></ul>
  12. 12. Characteristics of MIS <ul><li>MIS is an integrative system </li></ul><ul><li>MIS is coordinated system </li></ul><ul><li>MIS is flexible </li></ul><ul><li>MIS enhance productivity </li></ul><ul><li>MIS is a feedback system </li></ul><ul><li>MIS transform the data into information </li></ul>
  13. 13. Functions of MIS Collect Data Store and Process Managers Present Information to Mangers
  14. 14. Application of MIS <ul><li>Strategy support </li></ul><ul><li>Computers can assist management to understand the effects of their strategies and help enable effective decision making……… </li></ul><ul><li>Data processing </li></ul><ul><li>MIS system allow for the collation of vast amounts of business data, but they also provide a valuable time saving benefit to the workforce………………. </li></ul>
  15. 15. Decision Support System <ul><li>DSS is an outcome of MIS providing support for management at operational control, management control and strategic planning…. </li></ul><ul><li>In DSS currently receiving much publicity is computer graphics….. </li></ul><ul><li>The term decision support system refers to a system which support process of making decisions….. </li></ul>
  16. 16. Cont………. <ul><li>Definition….A set of well-integrated, user-friendly, computer-based tools that combine data with various decision making models- quantitative and qualitative to solve semi-structured and unstructured problems </li></ul><ul><li>According to Scott Morton, </li></ul><ul><li>“ DSS as interactive computer based systems, which help decision-makers to utilize data and model to solve unstructured problems” </li></ul>
  17. 17. Components of DSS <ul><li>Hardware Resource </li></ul><ul><li>Software Resource </li></ul><ul><li>Data Resource </li></ul><ul><li>Model Resource </li></ul><ul><li>People Resource </li></ul><ul><li>Decision Support System Package </li></ul>
  18. 18. Application of DSS <ul><li>Independent problem </li></ul><ul><li>Interrelated problem </li></ul><ul><li>Organizational problem </li></ul>
  19. 19. Group Decision Support System <ul><li>Meaning of GDSS………. </li></ul><ul><li>GDSS is an interactive, computer based system that facilities solution of unstructured problem by set of decision makers working together as a group….. </li></ul>
  20. 20. Chacterstics of GDSS that Enhance Decision Making <ul><li>Special design </li></ul><ul><li>Ease of use </li></ul><ul><li>Flexibility </li></ul><ul><li>Decision- Making Support </li></ul><ul><li>Reduction of Negative group behavior </li></ul><ul><li>Parallel communication </li></ul>
  21. 21. Expert System <ul><li>An experts system is software that contains a knowledge base of facts and relationships and has ability to make inferences based on that knowledge base </li></ul><ul><li>According to REBOH and REITER….. </li></ul><ul><li>“ Expert systems are interactive computer programs incorporating judgment, rules of thumb, intuition and other expertise to provide knowledgeable advice about a variety of tasks” </li></ul>
  22. 22. Components of ES <ul><li>Knowledge acquisition subsystem </li></ul><ul><li>Knowledge base </li></ul><ul><li>Inference engine. </li></ul><ul><li>User interface. </li></ul>
  23. 23. Business Application of Expert System <ul><li>Manufacturing </li></ul><ul><li>Marketing </li></ul><ul><li>Accounting and Finance </li></ul><ul><li>Personnel </li></ul><ul><li>General Business </li></ul>
  24. 24. Executive Support System <ul><li>EIS or ESS are information system that combine many of the features of management information system and decision support system ……. </li></ul>
  25. 25. Components of EIS <ul><li>Hardware </li></ul><ul><li>Software </li></ul><ul><li>Interface </li></ul><ul><li>Telecommunication </li></ul>
  26. 26. Applications of EIS <ul><li>Manufacturing </li></ul><ul><li>Marketing </li></ul><ul><li>Financial </li></ul>

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