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Operation efficiency measurements and subjective evaluations for tasks on hardcopy and various displays

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The final goal of this study is to clarify the humaninterface requirements for “Digital Paper”. Operation efficiency measurements and subjective evaluation were carried out, as a first step to discern the differences between hardcopy and softcopy for the same tasks. Simple tasks were given to 25 subjects using hardcopy and three displays: CRT, transmission type LCD with back-light, and reflective type LCD. The reflective type LCD was used in two conditions: with desk light, and without desk light. Answer speeds and correct answer rates were measured in an objective evaluation. Questionnaires on viewing ease and degree of fatigue were given to the subjects in a subjective evaluation. The objective evaluation showed only a slight difference between the interface styles; the subjective evaluation showed, on the other hand, the clear superiority of hardcopy to the other display styles.
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Document Type: Research Article

Publication date: 2001-01-01

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