ABSTRACT
The emergence of touch-based mobile devices brought fresh and exciting possibilities. These came at the cost of a considerable number of novel challenges. They are particularly apparent with the blind population, as these devices lack tactile cues and are extremely visually demanding. Existing solutions resort to assistive screen reading software to compensate the lack of sight, still not all the information reaches the blind user. Good spatial ability is still required to have notion of the device and its interface, as well as the need to memorize buttons' position on screen. These abilities, as many other individual attributes as age, age of blindness onset or tactile sensibility are often forgotten, as the blind population is presented with the same methods ignoring capabilities and needs. Herein, we present a study with 13 blind people consisting of a touch screen text-entry task with four different methods. Results show that different capability levels have significant impact on performance and that this impact is related with the different methods' demands. These variances acknowledge the need of accounting for individual characteristics and giving space for difference, towards inclusive design.
- Bonner, M. et al. 2010. No-Look Notes: Accessible Eyes-Free Multitouch Text-Entry. Pervasive Computers, 409--426. Google ScholarDigital Library
- Czaja, S. and Lee, C. 2007. The impact of aging on access to technology. UAIS, 5(4):341--349. Google ScholarDigital Library
- Gregor, P. and Newell, A. 2001. Designing for dynamic diversity: making accessible interfaces for older people. In Proceedings of the 2001 EC/NSF work-shop on Universal accessibility of ubiquitous computing, 90--92. Google ScholarDigital Library
- Guerreiro, T., et al.. 2008. From Tapping to Touching: Making Touch Screens Accessible to Blind Users. IEEE Multimedia, 15, 4, 48--50. Google ScholarDigital Library
- Guerreiro, T., et al. 2010. Identifying the individual ingredients for a (in)successful non-visual mobile experience. Proc. of ECCE'10. Google ScholarDigital Library
- Kane, S., et al., 2008. Slide Rule: Making Mobile Touch Screens Accessible to Blind People using Multi-Touch Interaction Techniques. In Proceedings of ASSETS, 73--80. Google ScholarDigital Library
- Kane, S., et al. 2011. Usable Gestures for Blind People: Understanding Preference and Performance. In Proc.of CHI. Google ScholarDigital Library
- Kurniawan, S. 2007. Mobile Phone Design for older persons. Designing for seniors: innovations for graying times, 24--25.Google Scholar
- Mackinnon, S., Dellon, A. Two-point discrimination tester. Journal of Hand Surgery. 10A:906--7, 1985.Google Scholar
- Persad, U., et al. 2007. Characterising user capabilities to support inclusive design evaluation. UAIS, 6(2):119--135. Google ScholarDigital Library
- Tremblay, F., Mireault, A.C., Dessureault, L., Manning, H., Sveistrup, H. Experimental Brain Research : 155--164, 2004.Google Scholar
- Wechsler, D. Wechsler Adult Intelligence Scale - Revised. San Antonio, TX: Psychological Corporation; 1981.Google Scholar
- Wobbrock, J., et al. 2011. Ability-Based Design: Concept, principles and examples. ACM Trans. on Access.Computing. Google ScholarDigital Library
- Yfantidis, G., and Evreinov, G. 2006. Adaptive Blind Interaction Technique for Touchscreens. UAIS, 4, 328--337. Google ScholarDigital Library
- Xydias, N. Tests pour l'orientation et la selection professionnelle des aveugles. Ed.Sc. et Psych, 1977.Google Scholar
- Zajicek, M. Design principles to support older adult. 2004. Springer Berlin/Heidelberg, 111--113. Google ScholarDigital Library
Index Terms
- Blind people and mobile touch-based text-entry: acknowledging the need for different flavors
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