Usability of Touch-Panel Interfaces for Older Adults

Abstract

The usability of a touch-panel interface was compared among young, middle-aged, and older adults. In addition, a performance model of a touch panel was developed so that pointing time could be predicted with higher accuracy. Moreover, the target location to which a participant could point most quickly was determined. The pointing time with a PC mouse was longer for the older adults than for the other age groups, whereas there were no significant differences in pointing time among the three age groups when a touch-panel interface was used. Pointing to the center of a square target led to the fastest pointing time among nine target locations. Based on these results, we offer some guidelines for the design of touch-panel interfaces and show implications for users of different age groups. Actual or potential applications of this research include designing touch-panel interfaces to make them accessible for older adults and predicting movement times when users operate such devices.

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References

Card, S. K English, W. K & Burr, B.J. (1983). Evaluation of mouse, rate-controlled isometric joysticks, step keys, and text keys for text selection on a CRT. Ergonomics, 21 601–613.

Charness, N. Bosman, E. A. , & Elliot, R. G. (1995). Senior friendly input devices: Is the pen mightier than the mouse? In Proceedings of the 103rd Annual Convention of the American Psychological Association (pp. 495-551). Washington, DC: American Psychological Association.

Charness, N. Holley, P. Feddon, J. Jastrzembski, T. (2004). Light pen use and practice minimize age and hand performance differences in pointing tasks. Human Factors, 46 373–384.

Czaja, S. J. (1997). Computer technology and the older adult. In T. K. Landauer & P. Prabhu (Eds.), Handbook of human-computer interaction (2nd ed., pp. 797–824). Amsterdam: North-Holland.

Douglas, S. A. , & Mithal, A. K. (1997). The ergonomics of computer pointing devices. London: Springer.

Echt, K. V Morrell, R. W & Park, D.C. (1998). The effects of age and training formats on basic computer skill acquisition in older adults. Educational Gerontology, 24 3–25.

Epps, B. W. (1986). Comparison of six cursor control devices based on Fitts' law models. In Proceedings of the Human Factors Society 30th Annual Meeting (pp. 327-331). Santa Monica: Human Factors and Ergonomics Society.

Fitts, P. M. (1954). The information capacity of the human motor system in controlling the amplitude of movement. Journal of Experimental Psychology, 47 381–391.

Galitz, W. O. (1997). The essential guide to user interface design --- An introduction to GUI design principles and techniques. New York: Wiley.

10.

Kelly, C. L Morrell, R. W Park, D. C & Mayhorn, C.B. (1999). Predictors of electronic bulletin board system use in older adults. Educational Gerontology, 25 19–35.

11.

MacKenzie, I. S. (1992). Fitts' law as a research and design tool in human-computer interaction. Human-Computer Interaction, 7 91–139.

12.

Morrell, R. W. , & Echt, K. V. (1997). Designing instructions for computer use by older adults. In A. D. Fisk & W. A. Rogers (Eds.), Handbook of human factors and the older adult (pp. 335–361). New York: Academic Press.

13.

Morrell, R. W Mayhorn, C. B & Bennett, J. (2000). A survey of World Wide Web use in middle-aged and older adults. Human Factors, 42 175–182.

14.

Morris, D. C. (1996). Ownership, use, and non-use of personal computers by older adults. Journal of Educational Technology Systems, 25 5–12.

15.

Murata, A. (1996). Empirical evaluation of performance models of pointing accuracy and speed with a PC mouse. International Journal of Human-Computer Interaction, 8 457–469.

16.

Murata, A. (1999). Extending effective target width in Fitts' law to a two-dimensional pointing task. International Journal of Human-Computer Interaction, 11 137–152.

17.

Pickering, J. A. (1986). Touch-sensitive screens: Technologies and their application. International Journal of Man-Machine Studies, 25 249–269.

18.

Rogers, W. A Cabrera, E. F Walker, N. Gilbert, D. K. , & Fisk, A. D. (1996). A survey of automatic teller machine usage across the adult life span. Human Factors, 38 156–166.

19.

Rogers, W. A Fisk, A. D McLaughlin, A. C & Pak, R. (2005). Touch a screen or turn a knob: Choosing the best device for the job. Human Factors, 47 271–288.

20.

Schwarts, J. (1988). The computer market. American Demographics, 10 38–41.

21.

Shneiderman, B. (1987). Designing the user interface: Strategy for effective human-computer interaction. Reading, MA: Addison-Wesley.

22.

Vanderheiden, G. C. (1997). Design for people with functional limitations resulting from disability, aging, or circumstance. In G. Salvendy (Ed.), Handbook of human factors and ergonomics (pp. 2012–2052). New York: Wiley.