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The Effects of Using Different Subjective Weighting Methods on Solving Multi-criteria Decision Making (MCDM) Problems

Shankha Shubhra Goswami, Dhiren Kumar Behera

Abstract


Multi-criteria decision making (MCDM) is the key to get rid from a dilemma when an individual stuck into a hard situation while selecting the best option among lots of available alternatives. Among the variety of MCDM tools that exists, some are used to determine the criteria weights while others are used to propose the best option and rank the alternatives. This paper particularly discusses about three popular subjective weighting MCDM methods namely, Analytic Hierarchy Process (AHP), Simple Multi-attribute Rating Technique (SMART) and Step-wise Weight Assessment Ratio Analysis (SWARA). The primary objective of this research article is to compare the outcome results from three different weighting methods applied to a single MCDM problem. To meet this purpose, a real time laptop selection problem is considered and two well-known ranking tools are adopted i.e. Multi- Objective Optimization on the basis of Ratio Analysis (MOORA) and full Multiplicative form of MOORA (MULTIMOORA) to provide the preference ranking order of the alternatives. The best laptop model is chosen among 6 selected models available in the market based on 7 criteria and the relative preferences of the buyers regarding different laptop specifications are noted by interacting with some laptop users. The final results and ranking obtained by using three different criteria weights from MOORA and MULTIMOORA are exactly same and both the methods in all cases show that model 5 is the best laptop model whereas model 4 is the worst among these six available alternatives.

Keywords


AHP, Laptop selection, MCDM, MOORA, MULTIMOORA, SMART, SWARA

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References


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DOI: https://doi.org/10.37628/ijpe.v6i1.1021

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