Design and evaluation of bathtub products based on the needs of elderly users
In order to improve the level of product safety and comfort,bathtub products were designed and e-valuated based on the needs of elderly users.Needs-related vocabulary of age-friendly bathtub products was collected through both online and offline channels.With such vocabulary,the affinity diagram(KJ)was em-ployed to analyze the needs of the elderly in alignment with the three levels of the emotional design theory.72 responses from a questionnaire with 7-point Likert Scale were employed to screen the vocabulary preliminarily.With the help of the fuzzy analytic hierarchy process(FAHP),such needs were quantified and weight-sorted,and three bathtub designs were produced accordingly.The technique for order preference by similarity to ideal solution(TOPSIS)was used to calculate the positive and negative ideal solutions as well as the relative close-ness of each design,for the sake of the optimal one.Results show that the KJ-FAHP-TOPSIS model for elderly bathtub products,which considers various factors by prioritizing need weighting and evaluating the designs,could make design solutions more reasonable by meeting the multidimensional needs of elderly users regarding bathtub products.
bathtub product designFAHPTOPSISneeds of elderly users
NETL
NSTL
万方数据
