Research On Evaluation Of Color Matching Design Of App User Interface For The Elderly Based On Kano Model And Grey Clustering Method

With the rise of mobile Internet,smart phones have become an important tool for daily production and life of residents,and various types of APP are constantly updated to add a variety of colors to the use of smart phones.In recent years,the phenomenon of aging in China is becoming more and more serious,the elderly population is gradually increasing,and more and more elderly people have become users of smart mobile devices.But at present,the mainstream smartphone APP user interface color matching in the market is mainly designed for young and middle-aged groups,and there are few APP user interface color matching design from the perspective of the elderly.Because of their special physiological and psychological characteristics,the use habits and preferences of the elderly are very different from those of the young group.Therefore,when the elderly users use mainstream APP products,the impact of interface color design on the user experience is mostly unsatisfactory.This study proposes a research method based on the combination of Kano model and grey clustering method,and takes the elderly users as the target group to evaluate the color matching design of APP user interface.First of all,the evaluation system of color matching design of APP user interface for the elderly is constructed on the basis of literature reading and user interview.The system is composed of three levels,and there are five evaluation indicators under each level.Secondly,the analytic hierarchy process is used to determine the comprehensive weight of each index in the evaluation system,and Kano model is used to classify each index,and the comprehensive weight of each index in the evaluation system are adjusted according to the classification results.Thirdly,through market research,this paper studies the mainstream APP of the same type in the current market,makes a set of typical low fidelity sample prototype of APP for the elderly,selects and designs the representative APP user interface color design,and applies the color design to the low fidelity sample prototype to build the high-fidelity test sample prototype of APP for the elderly.In addition,according to the prototype of high-fidelity test sample,the test participants are invited to carry out the user experience evaluation test of interface color matching design,and the test results are processed.Finally,according to the results,the grey clustering is carried out and the clustering results are analyzed.This study is based on the real feelings of the elderly users when they interact with the APP.Through user interviews,market researched and other ways to explore user need and preferences,and through the combination of Kano model and gray clustering method,this study studies the possible impact on APP user interface color design on the use of users,in order to explore the methods and paths to effectively improve the user experience through the combination of user interface color matching,and provide reference to designers in the design of elderly APP.