Thursday, September 17, 2009

Modeling with influence diagrams















A graphical representation of a decision.


  • Shows the various variables in a decision-making problem, their types and the relationships between them.
  • Provides an understanding of the relationships (dependencies) between variables involved in a decision.
  • Can be developed to any level of detail
  • Shows the effect of changes in controlled variables (but not the size of the effect).

Uses a standardised set of symbols to represent variables and dependencies.

Shapes indicate variables and their types

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