Abstract
A set of reliable usability metrics was determined to evaluate touchscreen-based information kiosk systems used by computer-illiterate, low-income, African users. Usability techniques that rely on communication between evaluator and user suffer from a language barrier if the evaluator is not fluent in the language of the typical users. Empirical metrics can be administered so that the effect of the language barrier is minimized. Candidate metrics were identified to measure the usability of a system with regard to learnability, productivity achieved and retention of interface knowledge over time. Three of the candidate metrics for learnability and five metrics for productivity proved to be applicable and reliable. Three of these metrics could also predict the degree to which users retain interface knowledge over time. The reliable metrics were consolidated into a survey form and a methodology is proposed for usability testing.
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References
Bonharme, E., White, I.: Evaluation Techniques: Usability Metrics, http://www.dcs.napier.ac.uk/marble/UsabilityMetrics.html
Borchers, J., Deussen, O., Knörzer, C.: Getting it across: Layout issues for Kiosk Systems. SIGCHI Bulletin 27(4), 68–74 (1995)
Dix, A., Finlay, J., Abowd, G., Beale, R.: Human-Computer Interaction, 2nd edn. Prentice Hall, Englewood Cliffs (1998)
ELO Touch systems. Keys to a successful Kiosk Application, http://www.elotouch.com
Holfelder, W., Hehmann, D.: A Networked Multimedia Retrieval Management System for Distributed Kiosk Applications. In: Proceedings of the 1994 IEEE International Conference on Multimedia Computing and Systems (1994)
IEEE Std. 1061. IEEE Std. 1061, Software Quality Metrics Methodology (1998)
ISO/DIS 9241-11. Guidance on usability. Ergonomic Requirements for Office Work with Visual Display Terminals
Maguire, M. A review of user-interface design guidelines for public information kiosks. HUSAT Research Institute, http://www.lboro.ac.uk/eusc/g_design_kiosks.html
Mandel, T.: The Elements of User Interface Design. John Wiley & Sons, Chichester (1997)
Nielsen, J.: Heuristic evaluation. In: Nielsen, J., Mack, R.L. (eds.) Usability Inspection Methods, John Wiley & Sons, Chichester (1994)
Nielsen, J. (1). Usability metrics, http://www.useit.com/alertbox/20010121.html
Nielsen, J.: (2). Success rate: The simplest usability metric, http://www.useit.com/alertbox/20010218.html
Nielsen, J., Molich, R.: Heuristic evaluation of user interfaces. In: Proceedings of the ACM CHI 1990 Conference, pp. 249–256 (1990)
Norman, K.L., Friedman, Z., Norman, K., Stevenson, R.: Navigational issues in the design of online self-administered questionnaires. Behavior & Information Technology 20(1), 37–45 (2001)
Polson, P., Lewis, C., Rieman, J., Wharton, C.: Cognitive walkthroughs: A method for theory-based evaluation of user interfaces. International Journal of Man-Machine Studies 36, 741–773 (1992)
Potter, R.L., Weldon, L.J., Shneiderman, B.: Improving the accuracy of touchscreens: An experimental evaluation of three strategies. In: Proceedings of the Conference on Human Factors in Computing Systems, pp. 27–32 (1988)
Plaisant, C., Sears, A.: Touchscreen interfaces for alphanumeric data entry. In: Proceedings of the Human factors Society–36th Annual Meeting, 1992, vol. 1, pp. 293–297 (1992)
Preece, J., Rogers, Y., Sharp, H., Benyon, D., Holland, S., Carey, T.: Human-Computer Interaction. Addison-Wesley, Reading (1994)
Sears, A.: Improving touchscreen keyboards: design issues and a comparison with other devices. Interacting with Computers 3(3), 253–269 (1991)
Sears, A., Kochavy, Y., Shneiderman, B.: Touchscreen field specification for public access database queries: let your fingers do the walking. In: Proceedings of the ACM Computer Science Conference 1990, pp. 1–7 (1990)
Sears, A., Shneiderman, B.: High precision touchscreens: Design strategies and comparisons with a mouse. International Journal of Man-Machine Studies 34(4), 593–613 (1991)
Shneiderman, B.: Touchscreens now offer compelling uses. IEEE Software 8(2), 93–94& 107 (1991)
Shneiderman, B., Brethauer, D., Plaisant, C., Potter, R.: Evaluating three museum installations of a hypertext. Journal of the American Society for Information Science 40(3), 172–182 (1989)
Shneiderman, B.: Designing the User Interface: Strategies for Effective Human-Computer Interaction, 3rd edn. Addison-Wesley, Reading (1998)
Usability Website. Learning from usability metrics and statistics, http://www.usabilitywebsite.com/usabilitymetrics.htm
Whiteside, J., Bennett, J., Holtzblatt, K.: Usability engineering: Our experience and evolution. In: Helander, M. (ed.) Handbook of Human-Computer Interaction, North-Holland, Amsterdam (1988)
Zdralek, J.: Clarifying the Metrics of Usability, http://www.deziner.com/site/dezine/words/text/usability_metrics.htm
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Blignaut, P. (2004). An Empirical Methodology for Usability Analysis of a Touchscreen-Based Information Kiosk System for African Users with Low Levels of Computer Literacy. In: Stary, C., Stephanidis, C. (eds) User-Centered Interaction Paradigms for Universal Access in the Information Society. UI4ALL 2004. Lecture Notes in Computer Science, vol 3196. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30111-0_17
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DOI: https://doi.org/10.1007/978-3-540-30111-0_17
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