The tree structure indicates were inferences are allowed and where evidences for the inferences may be obtained. Ross Shacter of Stanford University developed a graphical structure for modeling uncertain variable and decision. It reveals the probabilistic dependence and the flow of information. It formulates problems from the view of the decision-maker and incorporates the knowledge of experts. Precise descriptions of information are stored in computer memory.
Analysis is performed using the decision makers perspective on problems.
The structure of influence diagrams in similar to dynamic programming in classical operations research. Analyze the effects of increasing system complexity on system reliability methods and measurements.