NASA NTRS · 19870038564
The optimal number of menu options per panel
Abstract
An evaluation is made of the effects of the 'funneling' phenomenon, in an analysis of hierarchical menu structures' optimal search times which builds on the work of Lee and MacGregor (1985). Funneling is a reduction in the total number of options processed through the design of a system of greater choice 'depth' and correspondingly restricted choice 'breadth'. Both random and ordered menus are treated. The available evidence is found to support the general conclusion that randomly ordered menu panels should have only a few (4-8) options, while organized menus should contain as many options as 64.
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Paap, Kenneth R., Roske-Hofstrand, Renate J.. 1986-08-01. The optimal number of menu options per panel. https://ntrs.nasa.gov/citations/19870038564
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