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2009-08-11 Pre-trials throughts

posted Aug 11, 2009, 2:54 AM by Unknown user   [ updated Aug 11, 2009, 4:20 AM by Eddie Woo ]
  • If someone makes a bad decision on the advice of the decision support system, it is the person's fault?
    • What is the main point of a decision support system? I would say it is to support decisions, not make them.
      • Jacaranda textbook, page 185 - "Note that decision support systems assist in decision making, but they do not make the final decision, this is up to the person using the system"
      • Jacaranda textbook, page 186 - "[Decision support systems] support the decision makers rather than try to replace them. The person using the system makes the final decision. The nature of many problems means that some human judgement is still required in their solution."
      • This appears to be contradicted by page 201 - "Can DSSs be designed to take the extra step and make judgements for us? They can if they are using artificial intelligence."
    • However, Jacaranda textbook, page 186 lists the spelling/grammar checks in word processors as a drill-down analysis because it "shows working" (as in mathematics)
      • If a student handed in a written work that was corrected automatically using this sort of DSS, and it had mistakes like, "eye used my pea sea", the student would be blamed despite the fact that the student was incorrectly advised by the DSS.
      • Stock market example - the stockbroker wouldn't be able to blame his/her DSS for bad stock decisions as the stock market is complex to the level of artificial neural networks
    • Question is answered on page 224 - "The end user is ultimately responsible for the decisions that he or she makes with or without the help of a DSS"
  • Jacaranda textbook, page 185 - "A common abbreviation for decision support system is DSS." - therefore, "DSS" should be an acceptable abbreviation in exams?
  • Drill-down analysis is important because it allows the end user to made an evaluation of the advice provided by a DSS based on how the advice was constructed.
  • If we get a question that requires us to draw a user interface or expert system shell, do we need to use a ruler?
  • How are GDSSs decision support systems? The examples on page 223 aren't GDSSs, they are collaboration techniques.