Towards Innovative MCDM-based Sustainable Consumer Choices System: Automotive Evaluation Case Study

Constant technological progress results in an ever-expanding assortment of products available on the market. As a result, purchasing decisions require consideration of an increasing number of different criteria. This phenomenon motivates the development and improvement of consumer decision support tools, focusing on multi-criteria decision-making methods (MCDM). This paper presents the practical use of a tool based on four MCDM methods: COMET combined with TOPSIS, PROMETHEE II, TOPSIS and VIKOR, on the example of a multi-criteria problem of passenger car selection. The resulting rankings were compared using similarity coefficients WS and r
w
. The results obtained confirm the usefulness of MCDM methods as a tool to support multi-criteria consumer choices.