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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