Tech Report HCIL-88-04

Potter, R., Weldon, L., Shneiderman, B. (May 1988)
Improving the accuracy of touch screens: an experimental evaluation of three strategies
Proc. of the Conference on Human Factors in Computing Systems, CHI `88 (Washington, DC) 27-32. Also Sparks of Innovation in Human-Computer Interaction, Shneiderman, B., Ed., Ablex (June 1993) 161-169. [Published Version]
HCIL-88-04

A study comparing the speed, accuracy, and user satisfaction of three different touch screen strategies was performed. The purpose of the experiment was to evaluate the merits of the more intricate touch strategies that are possible on touch screens that return a continuous stream of touch data. The results showed that a touch strategy providing continuous feedback until a selection was confirmed had fewer errors than other touch strategies. The implications of the results for touch screens containing small, densely-packed targets were discussed.