As the demand for indoor air quality increases, air purifier design faces new challenges. This study adopts the FKANO-DEMATEL-VIKOR integrated model. Through 115 questionnaires, user needs are identified, with the FKANO model recognizing key requirements, DEMATEL analyzing the interdependencies and importance of these needs, and three air purifier designs being developed. The VIKOR method is then used to select the optimal solution, which is compared with two existing products for validation. This study proposes a comprehensive scientific approach to meet user needs, providing reliable decision support for air purifier design, enhancing user satisfaction, and improving product competitiveness. The stability of the integrated model under different weight settings is also verified, demonstrating its significant potential in meeting user needs and increasing product competitiveness. Additionally, for engineering management, this research emphasizes the importance of thoroughly understanding user needs. Engineering managers should encourage teams to conduct in-depth user research, consider interdependencies among requirements, make decisions based on comprehensive evaluations, and perform sensitivity analysis to ensure the product design maintains a competitive edge in the market.
Read full abstract