Design of Elderly-oriented Toilet with Integrated KANO-AHP-AD

PAN Zhaoyang; LIU Piaoyang; YANG Xiangxiang

doi:10.19554/j.cnki.1001-3563.2025.16.012

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Packaging Engineering ›› 2025, Vol. 46 ›› Issue (16) : 133-145. DOI: 10.19554/j.cnki.1001-3563.2025.16.012

Industrial Design

Design of Elderly-oriented Toilet with Integrated KANO-AHP-AD

PAN Zhaoyang^1,2, LIU Piaoyang¹, YANG Xiangxiang^1,2,*

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Abstract

In order to optimize the toilet experience of the elderly, the work aims to design a toilet that can effectively solve the problems encountered by the elderly such as inconvenience in getting up, flushing after use, low comfort in use, inconvenience in use at night and improve the comfort, convenience and safety of the elderly in using the toilet. Firstly, the user needs were obtained through surveys and the KANO model was used to classify the needs of the elderly. Secondly, the analytic hierarchy process was used to construct the hierarchy model of user needs, solve the weight coefficient of different user needs, and sort the importance of user needs. Then, based on the independence axiom principle of AD axiom design, the mapping among the requirements domain (C_A_s), functional domain (F_R_s) and design domain (D_P_s) of the age-oriented toilet was completed, the rationality of the design was gradually judged, the optimal solution was obtained through matrix solving, and the design of the age-oriented toilet was guided accordingly. Finally, TOPSIS was used to evaluate the effectiveness and feasibility of the design scheme. Through the integrated model of KANO-AHP-AD, a toilet that could meet the needs of the elderly and effectively improve their toilet experience was designed, and the effectiveness of the scheme was verified through design evaluation. According to TOPSIS evaluation results, the KANO-AHP-AD integrated model can explore user needs more scientifically and objectively and effectively guide product design, further verifying the advantages of this design process in practice, which is scientific, accurate, intuitive and reasonable, and can provide scientific and feasible ideas and references for subsequent research on the design of similar age-oriented products.

Key words

age-oriented / toilet / KANO / AHP / AD / TOPSIS / user need

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PAN Zhaoyang, LIU Piaoyang, YANG Xiangxiang. Design of Elderly-oriented Toilet with Integrated KANO-AHP-AD[J]. Packaging Engineering. 2025, 46(16): 133-145 https://doi.org/10.19554/j.cnki.1001-3563.2025.16.012

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