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In recent years, ergonomically designed products have been made available to fit the shape of human hands (Figs. 1 and 2). We consider a Graphical User Interface (GUI) that will also be more comfortable and natural by designing it in a similar way to reflect the Slant Menu: Novel GUI Widget with Ergonomic Design characteristics of human hand and arm movements. Thus, we propose an Ergonomic GUI that we designed from the perspective of ergonomically designed products. In this study, we developed a pull-down menu as a typical GUI widget (Fig. 3).
We asked 10 subjects (female computer science students aged 21 years to 24 years) to select pull-down menu items. In this experiment, we developed a simulator program that randomly generated pull-down menus containing 10, 20, or 30 items. All the loci of the pointers were not straight and many of them drew curves (Fig. 4). This shows that a curved slanting menu would be useful for reducing the user’s stress in tracking menu items.
A curved slanting menu dropped down when a user clicked one of the menu bar items, as shown in Fig. 5. The shape of the pull-down menu varied to reflect the mouse pointer loci that a user had drawn in previous menu manipulations.
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