Observing Sara: A Case Study of a Blind Person’s Interactions with Technology 教授 : 張耀仁 學生 : 余怡璇 電子碩專二 9576619 Kristen Shinohara / Josh Tenenberg Institute of Technology University of Washington, Tacoma Tacoma, WA 98402 kshino@gmail.com / jtenenbg@u.washington.edu