INTRODUCTION to DECISION ANALYSIS
Lecture Outline
- Why Decision Analysis?
- Complexity in the modern world
- Information quantity
- Uncertainty and Risk
- Group decision requirements
- Multiple, conflicting objectives
=> To provide a rational decision making framework
- Where does Decision Analysis fit into Design?
- Everywhere!
- A critical aspect of all engineering, medicine, business, and ...
- Severe lack of numeracy by critical decision makers.
- Overlays math programming, stochastic systems, dynamic systems, etc.
- Diverse mathematical skills involved in decision theory.
- Severe lack of decision-making skills!
- III. Simple Examples of Decision Analysis
- Ranking Basketball Teams.
- St. Petersburg Paradox.
- Packaging Weapon Systems.
- Allais Paradox.
- Behavioral Factors.
- Medical Decision making.
- Decision Analysis -Should it be descriptive or prescriptive (normative)?
- Are decision makers capable (unaided) of making good decisions?
- What is needed?
- A set of rules for decision making must be defined in order that we may know what it is to be rational.
- The rules must address the values of the problem-owners - It must be possible to articulate their preferences and perceptions.
- The rules must state what it is to be rational in the face of perceptions of uncertainty.
- The rules must provide a calculus for steering the thinking of the decision makers through complex problems.
- Goal of Decision Analysis?
- To give guidance, information, insight, and structuring in the decision making process in order that better, more "rational", decisions can be made.
INTRODUCTION to DECISION ANALYSIS
Lecture Outline
- Current Practice of Decision Analysis: What do we have?
- Many diverse theories and approaches.
- Range from the highly mathematical utility theory to voodoo.
- Varied applications in many different fields.
- Successes and failures.
- Considerable confusion.
- Major Topics to be Covered in Lecture (time permitting)
- Decision Making Under Strict Uncertainty
Definitions:
- Decisions Under Risk
- Decisions Under Certainty
- Decisions Under Uncertainty
- Axioms for Rational Decision Making
- Value Functions => decisions under certainty
- Multi-Attribute Value Theory => decisions under certainty
- Utility Theory => decisions under risk
- Probability Revisited => decisions under risk
- Multi-Stage Decision Making => decisions under risk
- Group Decision Making => under certainty and risk
- Measurement Issues: Retrospective look at issues
- Non-Bayesian (non-traditional) Approaches => under certainty and risk
Suggested References
French, Simon, Decision Theory: An Introduction to the Mathematics of Rationality, Ellis Horwood Limited and John Wiley&Sons, New York, 1988. [Excellent Textbook]
Keeney, R.L., and Raiffa, H., Decisions With Multiple Objectives: Preferences and Value Trade-offs, John Wiley&Sons, New York, 1976. [Classic Work in Decision Analysis]
Watson, Stephen R., and Buede, Dennis M., Decision Synthesis: The Principles and Practice of Decision Analysis, Cambridge University Press, NY, NY, 1987.
Zeeleny, M., Multiple Criteria Decision Making, McGraw-Hill, New York, 1982.