IS CH1 Introduction to Information Systems

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IS CH1 Introduction to Information Systems

  1. 1. INFORMATION SYSTEMS<br />INTRODUCTION TO INFORMATION SYSTEMS<br />Prepared by: Jan Wong<br />
  2. 2. The Learning Outcomes<br />Understand what on earth is an Information System<br />Know the components of an Information System<br />
  3. 3. The Keywords<br /><ul><li>Data vs Information
  4. 4. Systems
  5. 5. Decision
  6. 6. Valuable
  7. 7. Hardware
  8. 8. Software
  9. 9. People
  10. 10. Procedure</li></li></ul><li>Back to Basics<br />What is a computer?<br /><ul><li>An electronic device, operating under the control of instructions stored in its own memory;
  11. 11. Accepts data(Input)
  12. 12. Raw facts, figures and symbols
  13. 13. Processes data into information(Process)
  14. 14. Data that is organized, meaningful and useful for decision making
  15. 15. Produces results(Output)
  16. 16. Stores the results (Storage) for future use</li></li></ul><li>Back to Basics<br />What is an Information System?<br /><ul><li>To provide accurate, timely and useful information
  17. 17. Each element must be present and all of the elements must work together
  18. 18. The Information System consists of FIVE PARTS which include: people, procedures, software, hardware, and data</li></li></ul><li>The 5 Elements of I.S.<br />#1: HARDWARE<br />#2: SOFTWARE<br />#3: PEOPLE<br />#4: PROCEDURES<br />#5: DATA<br />or INFORMATION<br />
  19. 19. It is defined as; any electric, electronic and mechanical components contained in a computer<br />Examples :<br />Monitor<br />Keyboard<br />Printers<br />Thumb drive<br />Hard disk<br />Scanner<br />The Elements<br />#1: HARDWARE<br />
  20. 20. It is defined as; series of instructions that tells a computer what to do and how to do it<br />Examples :<br />Operating systems<br />Application software<br /><ul><li>Word processing
  21. 21. Spreadsheet
  22. 22. Database
  23. 23. Presentation graphics
  24. 24. Custom software
  25. 25. or any other software used in an organisation</li></ul>The Elements<br />#2: SOFTWARE<br />
  26. 26. A user is a person who communicates with a computer or uses the information that it generates<br />Skilled<br />Up-to-date IT knowledge<br />Train users<br />The Elements<br />#3: PEOPLE<br />
  27. 27. It is defined as; an instruction or set of instructions a user follows to accomplish an activity<br />Example :<br />User manual<br />Data entry <br />Step-by-Step<br />The Elements<br />#4: PROCEDURE<br />
  28. 28. DATA<br />Data (singular=datum) are raw facts<br />Data has no inherent meaning<br />Data cannot be used for making decision<br />INFORMATION<br />Processed data that conveys meaning and useful to people<br />It is used for making decision<br />Examples :<br />Employee payroll report<br />Student grade sheet<br />Telephone bill statement<br />The Elements<br />#5: DATA /<br />INFORMATION<br />
  29. 29. In other words…<br />“I.S. is to help in decision making” <br />
  30. 30. Huh? Decision Making?<br /><ul><li> Improve productivity
  31. 31. Monitor organisational performance
  32. 32. Planning and decision making
  33. 33. Competitive advantage</li></li></ul><li>SIX Qualities of ValuableInfo<br />Accuracy<br />Error free<br />Inaccurate information can lead to incorrect decisions<br />Verifiable<br />User can conform and verify the information<br />Can be proven as correct or incorrect<br />Timely<br />Has an age suited to its use<br />
  34. 34. SIX Qualities of ValuableInfo<br />Organised<br />Information is arranged to suit the needs and requirements of the users<br />Meaningful<br />Relevant to the user who receives or uses it<br />Unnecessary information must be eliminated<br />Cost effective<br />The cost to produce the information should be less than the actual cost of the information<br />
  35. 35. Types of Information Systems<br /><ul><li>Transaction Processing Systems
  36. 36. Management Information System
  37. 37. Decision Support Systems
  38. 38. Knowledge Management Systems
  39. 39. Database Management Systems
  40. 40. Office Information Systems
  41. 41. Etc..</li></li></ul><li>More Examples<br />APIIT / UCTI<br />Timetable<br />Learnfinity<br />Student Records<br />Booking & Reservations<br />Air Asia<br />GSC<br />Hotels<br />Book Stores<br />Supply Chain<br />Hypermarkets<br />
  42. 42. Questions, anyone?<br />
  43. 43. Chapter 2: Introduction to Database Management<br />
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