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Chapter 9

Chapter 9. Decision Support Systems. Agenda. DSS DSS Components Other Types of DSS Group DSS. DSS. Sprague / Carlson: “Computer-based system that helps the decision maker confront ill-structured problems through direct interaction with data and analysis models . ”.

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Chapter 9

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  1. Chapter 9 Decision Support Systems

  2. Agenda • DSS • DSS Components • Other Types of DSS • Group DSS

  3. DSS Sprague / Carlson: “Computer-based system that helps the decision maker confront ill-structured problems through direct interaction with data and analysis models.”

  4. DSS Philosophy • Aid decision maker • Not replace (ES) • Decision maker remains in control • Not always best decision • Change / flexibility • Quick response

  5. DSS Characteristics • Large amounts of data • Different data sources • Tailored to decision maker: • judgment • knowledge • intuition • style • personal traits

  6. DSS Characteristics • Graphically oriented • Optimize / heuristics • “What if”(sensitivity) analysis • Goal-seeking analysis • Unstructured problems

  7. Agenda • DSS • DSS Components • Other Types of DSS • Group DSS

  8. DSS Major Components • Database • DSS software • Graphical interface • Model base • Decision maker

  9. Model Base • Financial • Statistical Analysis • Management Science • Operations research

  10. Financial Models • Cash Flow • Return on investment • Portfolio Analysis • Stock market • Advertising

  11. Statistical Analysis • Descriptive (summary) • Trend projection • Hypothesis testing • Regression analysis

  12. Management Science • Inventory • Queuing (Line) • Network

  13. Agenda • DSS • DSS Components • Other Types of DSS • Group DSS

  14. Other Types of DSS • Executive information System (EIS) • Timely information • Direct access by users • Executive support system (ESS) • Analysis support • Communication • Office automation • Intelligence (automation)

  15. Other Types of DSS • Online analytical processing • Analytical tools • Database • Simulation • Math models • Experiments under different circumstance • Visual interactive model (VIM) • Visual interactive simulation (VIS)

  16. DSS Examples • Kmart • Price evaluation • Southern Railway • Train dispatching and forecasting • Texas Oil & Gas • Potential drilling sites

  17. Agenda • DSS • DSS Components • Other Types of DSS • Group DSS

  18. Group Decision Support System (GDSS) Interactive computer-based system facilitating solution of unstructured problems by a set of decision makers working together as a group.

  19. GDSS Components • Database • Model base • GDSS processor • Groupware • Dialogue manager • Users

  20. GDSS Benefits • Group meeting efficiency • Quality of decisions • Alternatives examined • Participation / contribution • Those who would otherwise be silent • Better decision outcomes

  21. Points to Remember • DSS • DSS Components • Other Types of DSS • Group DSS

  22. Discussion Questions • Does your organization use DSS? • How? • How could your organization use a DSS? • What problems do you see with DSS? • GDSS is based on the assumption that anonymity is desired. How important is anonymity in groups? • at work? • in class?

  23. Assignment • Review chapters 7-9 • Read chapter 10, chapters 2-3 (Morrison) • Group assignment • Research paper

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