Edward Clarkson
Kent Lyons
ABSTRACT
MacKenzie and Soukoreff have previously introduced a Fitts' Law-based performance model of expert two-thumb text entry on mini-QWERTY keyboards [4]. In this work we validate the original model using results from a longitudinal study of mini-QWERTY keyboards, and update the model to account for observed inter-key time data.
Supplemental Material
Available for Download
Slides from the presentation
Supplemental material for 'Revisiting and validating a model of two-thumb text entry'
- Clarkson, E., Clawson, J., Lyons, K., and Starner, T. An Empirical Study of Typing Rates on Mini-QWERTY Keyboards. In CHI '05 Extended Abstracts, pp. 1288--1291. Google Scholar
Digital Library
- Fitts, P. M. The Information Capacity of the Human Motor System in Controlling the Amplitude of Movement. Journal of Experimental Psychology, 47:381--391, 1954.Google ScholarCross Ref
- Kabbash, P. and Buxton, W. A. S. The "Prince" Technique: Fitts' Law and Selection Using Area Cursors. In Proceedings of CHI '95, pp. 273--279. Google ScholarDigital Library
- MacKenzie, I. S. and Soukoreff, R. W. A Model of Two-Thumb Text Entry. In Proceedings of Graphics Interface '02, pp. 117--124.Google Scholar
- MacKenzie, I. S. and Soukoreff, R. W. Phrase Sets for Evaluating Text Entry Techniques. In CHI '03 Extended Abstracts, pp. 754--755. Google ScholarDigital Library
- Silfverberg, M., MacKenzie, I. S., and Korhonen, P. Predicting Text Entry Speed on Mobile Phones. In Proceedings of CHI '00, pp. 9--16. Google ScholarDigital Library
Index Terms
- Revisiting and validating a model of two-thumb text entry
Recommendations
Improving two-thumb text entry on touchscreen devices
CHI '13: Proceedings of the SIGCHI Conference on Human Factors in Computing SystemsWe study the design of split keyboards for fast text entry with two thumbs on mobile touchscreen devices. The layout of KALQ was determined through first studying how users should grip a device with two hands. We then assigned letters to keys ...
Trackball text entry for people with motor impairments
CHI '06: Proceedings of the SIGCHI Conference on Human Factors in Computing SystemsWe present a new gestural text entry method for trackballs. The method uses the mouse cursor and relies on crossing instead of pointing. A user writes in fluid Roman-like unistrokes by ""pulsing"" the trackball in desired letter patterns. We examine ...
Bimanual text entry using game controllers: Relying on users' spatial familiarity with QWERTY
A strategy for entering text using two-handed game controllers with two analogue joysticks is proposed where the QWERTY keyboard layout is used as a spatial mnemonic. The technique is inspired by two-finger QWERTY typing where the fingers are ...
Comments