IS CH1 Introduction to Information Systems

IS CH1 Introduction to Information Systems

• 1.
  INFORMATION SYSTEMSINTRODUCTION TOINFORMATION SYSTEMSPrepared by: Jan Wong
• 2.
  The Learning OutcomesUnderstandwhat on earth is an Information SystemKnow the components of an Information System
• 3.
  The KeywordsData vsInformation
• 4.
  Systems
• 5.
  Decision
• 6.
  Valuable
• 7.
  Hardware
• 8.
  Software
• 9.
  People
• 10.
  ProcedureBack to BasicsWhatis a computer?An electronic device, operating under the control of instructions stored in its own memory;
• 11.
  Accepts data(Input)
• 12.
  Raw facts, figuresand symbols
• 13.
  Processes data intoinformation(Process)
• 14.
  Data that isorganized, meaningful and useful for decision making
• 15.
  Produces results(Output)
• 16.
  Stores the results(Storage) for future useBack to BasicsWhat is an Information System?To provide accurate, timely and useful information
• 17.
  Each element mustbe present and all of the elements must work together
• 18.
  The Information Systemconsists of FIVE PARTS which include: people, procedures, software, hardware, and dataThe 5 Elements of I.S.#1: HARDWARE#2: SOFTWARE#3: PEOPLE#4: PROCEDURES#5: DATAor INFORMATION
• 19.
  It is definedas; any electric, electronic and mechanical components contained in a computerExamples :MonitorKeyboardPrintersThumb driveHard diskScannerThe Elements#1: HARDWARE
• 20.
  It is definedas; series of instructions that tells a computer what to do and how to do itExamples :Operating systemsApplication softwareWord processing
• 21.
  Spreadsheet
• 22.
  Database
• 23.
  Presentation graphics
• 24.
  Custom software
• 25.
  or any othersoftware used in an organisationThe Elements#2: SOFTWARE
• 26.
  A user isa person who communicates with a computer or uses the information that it generatesSkilledUp-to-date IT knowledgeTrain usersThe Elements#3: PEOPLE
• 27.
  It is definedas; an instruction or set of instructions a user follows to accomplish an activityExample :User manualData entry Step-by-StepThe Elements#4: PROCEDURE
• 28.
  DATAData (singular=datum) areraw factsData has no inherent meaningData cannot be used for making decisionINFORMATIONProcessed data that conveys meaning and useful to peopleIt is used for making decisionExamples :Employee payroll reportStudent grade sheetTelephone bill statementThe Elements#5: DATA /INFORMATION
• 29.
  In other words…“I.S.is to help in decision making”
• 30.
  Huh? Decision Making?Improve productivity
• 31.
  Monitor organisationalperformance
• 32.
  Planning anddecision making
• 33.
  Competitive advantageSIXQualities of ValuableInfoAccuracyError freeInaccurate information can lead to incorrect decisionsVerifiableUser can conform and verify the informationCan be proven as correct or incorrectTimelyHas an age suited to its use
• 34.
  SIX Qualities ofValuableInfoOrganisedInformation is arranged to suit the needs and requirements of the usersMeaningfulRelevant to the user who receives or uses itUnnecessary information must be eliminatedCost effectiveThe cost to produce the information should be less than the actual cost of the information
• 35.
  Types of InformationSystemsTransaction Processing Systems
• 36.
  Management Information System
• 37.
  Decision Support Systems
• 38.
  Knowledge Management Systems
• 39.
  Database Management Systems
• 40.
  Office Information Systems
• 41.
  Etc..More ExamplesAPIIT /UCTITimetableLearnfinityStudent RecordsBooking & ReservationsAir AsiaGSCHotelsBook StoresSupply ChainHypermarkets
• 42.
  Questions, anyone?
• 43.
  Chapter 2: Introductionto Database Management