System for preparing management decisions: a gas pipeline siting case study

The paper describes the analysis of an important problem: the choice of a gas pipeline route on the Yamal Peninsula in the North of Russial. It is a real case of a difficult and controversial real-life decision. The authors were in the position of consultants, helping to decision makers to develop and justify a new and promising variant of the decision. The result of the utilization of verbal(categorical) decision analysis and a decision support system are given.