Abstract
Multi-scale interfaces make it possible to investigate Fitts’ law beyond 10 bits, so far an inviolable barrier of difficulty. We hadcomputer users, equipped with a zoom, point at visual targets whose index of difficulty (ID) varied between 3 and 30 bits. The zoom was ignored for easy targets and began to be used at ID = 8bits, with zooming amplitude then increasing linearly with the ID. A linear, zero-intercept Fitts’ law equation was found to accurately model target acquisition time throughout our extended spectrum of IDs. Some implications of these findings for human-computer interaction and basic research are discussed.
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Guiard, Y., Bourgeois, F., Mottet, D., Beaudouin-Lafon, M. (2001). Beyond the 10-bit Barrier: Fitts’ Law in Multi-Scale Electronic Worlds. In: Blandford, A., Vanderdonckt, J., Gray, P. (eds) People and Computers XV—Interaction without Frontiers. Springer, London. https://doi.org/10.1007/978-1-4471-0353-0_36
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DOI: https://doi.org/10.1007/978-1-4471-0353-0_36
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