A visual representation of a decision problem. An effective way to clarify objectives and display them with the uncertainties, dependencies, and other factors that influence the likelihood of reaching those objectives.

a graphical structure for modelling uncertain variables and decisions

a list of factors in a problem, together with arrows and signs showing the relationship between them

a simple visual representation of a decision problem

In decision analysis, an influence diagram (ID) (also called a relevance diagram) is a graphical and mathematical representation of probabilistic inference and decision problems. IDs are a generalization of decision trees.