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Improving accessibility of tactile interaction for older users: lowering accuracy requirements to support drag-and-drop interaction

Genaro Motti, Lilian and Vigouroux, Nadine and Gorce, Philippe Improving accessibility of tactile interaction for older users: lowering accuracy requirements to support drag-and-drop interaction. (2015) Procedia Computer Science, 67. 366-375. ISSN 1877-0509

(Document in English)

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Official URL: http://dx.doi.org/10.1016/j.procs.2015.09.281


Mobile applications offer great possibilities to the aging population but older adults face accessibility problems when using devices equipped with touchscreen. In order to respond to older users' special needs, it is necessary to support older users during tactile interaction to reduce error rates. The aim of this study is to evaluate the effects of the accuracy requirements for drag-and-drop interaction. 24 able-bodied older adults with different profiles (aged 65 to 86 years old, with corrected and not corrected eyesight, normal and low dexterity, different levels of education, different experience of use of computers and touchscreen) executed a series of tactile puzzle games on smartphone and tablet, with pen and fingers. We evaluate the number of errors for two levels of accuracy required for positioning the puzzle pieces: 95% (higher) and 80% (lower). Older adults made fewer errors of accuracy during lower accuracy levels and consequently fewer supplementary gestures for positioning the targets. Besides, lowering the accuracy requirement was an effective support for interaction because it also reduced the effects of users' profiles, improving the accessibility for people with no experience of use of computers.

Item Type:Article
Additional Information:Proceedings of the 6th International Conference on Software Development and Tech http://www.sciencedirect.com/science/article/pii/S1877050915031270 Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Procedia Computer Science website: http://www.sciencedirect.com/science/journal/18770509
HAL Id:hal-01316822
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > Université du Sud Toulon-Var - USTV (FRANCE)
Laboratory name:
Deposited On:07 Apr 2016 08:20

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