DAVID: Influence Diagram Processing System for the Macintosh

Influence diagrams are a directed graph representation for uncertainties as probabilities. Influence diagrams have been used for the last ten years as a model structuring and elicitation device in the practical field of decision analysis. They have been a powerful communication tool during the initial discussion about a problem, as well as when explaining results after analysis. Because the diagrams are heirarchical, with the numbers "hidden" within the nodes Within the last few years, a number of theoretical results allow for the analysis to be performed directly on the influence diagram-- as assessed. In general, these techniques apply a sequence of transformations to different influence diagrams, to solve either probabilistic inference or decision analysis problems.