A Multi-Criteria Group Decision To Support The Maintenance Service: A Case Study

The present paper wants to propose a methodology to support a group of decision makers into the choice of actions, to implement on a multi-component system, regarding the maintenance service. The choice has to be made on the basis of several criteria, namely the total maintenance cost, the system unavailability and by considering the maintenance actions feasibility. In particular, with the aim to select the maintenance service that represents for the group the best comprise among the criteria to satisfy, the proposed methodology consists of two multi-criteria decisions methods to apply in two successive phases. The first one regards the application of the Analytic Hierarchy Process (AHP) to assigns weights to the different considered criteria and the second one concerns the implementation of the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method.In order to illustrate the proposed methodology, a case study is presented