Selecting and Ranking the Best Maintenance Strategy Using Combined Techniques of Factor Analysis (FA), AHP, TOPSIS

Todayʹs maintenance plays a big role in organizationʹs success. This paper proposes a decision making model for selecting the best maintenance strategy for an oil refinery. The machines are clustered in three groups after a criticality analysis based on internal procedures of the oil refinery. The best maintenance strategy must be selected for each group of machines. In this regard, Factor analysis is applied to reduce the decision sub-criteria, Analytical Hierarchy Process approach is used for weighting the decision criteria and TOPSIS method is applied for ranking alternatives for each category of equipment.