Designing Handheld Assistive Devices to Improve Touchscreen Usability for Users with Motor Impairment

• Main Authors: Fu-Chieh Hsu, 許富傑
• Other Authors: Mike Y. Chen
• Format: Others
• Language: en_US
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/12636096272593336988

碩士 === 國立臺灣大學 === 資訊工程學研究所 === 102 === Touchscreens are becoming the mainstream input means for many technical devices but have many usability challenge for people with motor impairment~cite{Anthony:2013:AUY:2466110.2466158}. Existed solutions are most like exploiting either different interaction techniques or different sensitivity~cite{biswas:developing,Guerreiro:2010:TAT:1878803.1878809,Wacharamanotham:2011:EST:1978942.1979031}, both need system modification and are hard to adapt to different systems. We conducted an observation to analyze three common devices cross all touchscreen devices: finger (F), mouse (M), and stylus (S). By eliminating their motor skill requirements, we designed three handheld assistive devices: Customed Glove (CG), Direct Mouse (DM), and Customed Stylus (CS). Our study with 12 participants with Cerebral Palsy shows that Direct Mouse and Customed Stylus can improve success rate by 45\% and 25\% respectively, while Customed Glove remained the same.