Using the Analytic Hierarchy Process in Group Decision Making for Nuclear Spare Parts

The Analytic Hierarchy Process (AHP) is an established decision method used to synthesize judgments and select the best alternative. The AHP literature extensively discusses both theory and case studies for judgments made by one person. However, instances exist when the judgments of a group of individuals are needed for accurate knowledge representation and robust decision making. One such instance is spare parts processes for nuclear electricity plants. Elicitation of group knowledge is necessary because each work group may have different experiences and attitudes towards spare parts management. This paper presents an interview protocol used for group knowledge elicitation using AHP for nuclear spare parts inventory management. Inconsistencies in the data and challenges in AHP group aggregation are examined. A numerical example of employee responses is included. This research benefits the engineering manager by presenting a methodology to collect a range of knowledge across work groups. The authors’ overall decision tool supports existing corporate culture while striving for continuous process improvement.