A Novel Approach for Prioritization of Failure modes in FMEA using MCDM

Failure Mode Effect Analysis (FMEA) is one of user friendly and handy tool available in the hands of the process industries to identifying and eliminating the potential failures in systems, processes and designing. In this FMEA method prioritization of the failure modes are based on Risk Priority Number (RPN). This RPN can be calculated by multiplying the scores of various risk factors and categorized as Severity(S), Occurrence (O) and Detection (D). This RPN method has been criticized for its several limitations. So this paper aims to eliminate the limitations present in the RPN based prioritization by integrating with the Techniques of Multi Criteria Decision Making(MCDM) Model by fusing Analytical Hierarchy Process (AHP) with Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE).This hybridization of MCDM methods will enhance the precision of prioritizing failure modes by eliminating the limitations of traditional FMEA. The technique AHP is used to determine the weights for each risk factor and PROMETHEE is used to prioritize the failure mode based on the weights of risk factors.