Abstract
Two studies were conducted to test user performance and attitudes for three types of selection devices used in computer systems. The techniques examined included onscreen direct pointing (touch panel), off-screen pointer manipulation (mouse), and typed identification (keyboard). Both experiments tested subjects on target selection practice tasks, and in typical computer applications using menu selection and keyboard typing. The first experiment examined the performance and preferences of 24 subjects. The second experiment used 48 subjects divided into two typing skill groups and into male-female categories. The studies showed performance advantages for on-screen touch panel entry. Preference ratings for the touch panel and keyboard devices depended on the type of task being performed, while the mouse was always the least preferred device. Differences between this result and those reporting an advantage of mouse selection are discussed.
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