期刊刊名：應用藝術與設計學報 卷期：2期
篇名出版日期：2007年7月1日
作者：陳昱丞
語言：English
關鍵字：Mental Model,Simplified Thinking Aloud,Video / Audio Protocols
被點閱次數：70次
閱讀時間：2089sec
摘要： In spite that the trend towards more user friendly interface in contemporary design is growing, considerable improper designs nowadays can still be easily found out from many systems or products. Such improper system or product designs may result in inconvenient operations for users, and what is more, cause serious harm to the physical health. Therefore, specialists and scholars in the relevant field recently proposed the viewpoint of usability engineering by dint of impartial testing and researches on the characteristics of learnability, efficiency of use, memorability, frequency and severity of errors and subjective satisfaction while a user is operating a product or a system. The study employed an overhead projector (OHP), which has several interface designs need to be improved, to be operated by both inexperienced and skilled users through the experiments with “Simplified thinking aloud” and “video/audio protocols” of the usability engineering. We also utilized a video camera for filming the OHP operations by both inexperienced and skilled users by the thinking aloud method and then carried out the film analyses by video/audio protocols. Consequently, the mental model differences between both inexperienced and skilled users and required operating times in various phases are well analyzed. It is found from the study results that inexperienced users do not operate OHP well. Relevant conclusions can be provided for OHP designers as the interface design reference for making the functionality of an OHP more suitable for user needs, moreover, enabling existing poor OHP interface designs to be improved. Consequently, a better OHP interface design is able to heighten usability of the product, in addition, prevent possible serious hazards from improper OHP operations.
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