A Case Study About Usability, User Experience and Accessibility Problems of Deaf Users with Assistive Technologies

Interaction with mobile devices allows users to have advantages such as flexibility, mobility, and wireless communication. However, challenges have emerged in this interaction context, due to the smaller size of its screens, the new usage contexts, and the limited performance capacity. Usability, User Experience (UX) and Accessibility are quality perspectives used to improve user interaction with mobile devices. Mobile device users include the Deaf community, but some of them can have difficulties when using technologies. Therefore, Assistive Technologies (ATs) (including mobile devices) are inserted in society as important tools to enable better living conditions for their users. Moreover, it is relevant that technologies provide good interaction and help Deaf users to deal with their daily tasks. However, some available ATs have Usability, UX and Accessibility problems, such as displeasure and failures in the operational part of the ATs. We report an exploratory study with the purpose to investigate (a) if Deaf people use ATs when using mobile devices, and if so, what ATs they use; (b) what difficulties Deaf people encounter when using ATs; and c) how to overcome difficulties when using ATs. The study followed a qualitative research methodology where the data were obtained through questionnaires and observation of users performing tasks in ATs. Through the Grounded Theory method, it was possible to identify difficulties and barriers from the Usability, UX and Accessibility perspectives.

[1]  Cayley Guimaraes,et al.  Conceptual meta-environment for Deaf children Literacy challenge: How to design effective Artifacts for bilingualism construction , 2012, 2012 Sixth International Conference on Research Challenges in Information Science (RCIS).

[2]  Victor R. Basili,et al.  The TAME Project: Towards Improvement-Oriented Software Environments , 1988, IEEE Trans. Software Eng..

[3]  Harry Hochheiser,et al.  Research Methods for Human-Computer Interaction , 2008 .

[4]  Mohamed Jemni,et al.  Mobile sign language translation system for deaf community , 2012, W4A.

[5]  André L. M. Santos,et al.  Toward accessibility with usability: understanding the requirements of impaired uses in the mobile context , 2017, IMCOM.

[6]  Kasper Hornbæk,et al.  Old wine in new bottles or novel challenges: a critical analysis of empirical studies of user experience , 2011, CHI.

[7]  Claes Wohlin,et al.  Experimentation in Software Engineering , 2012, Springer Berlin Heidelberg.

[8]  Nor Laily Hashim,et al.  Studies on Deaf Mobile Application: Need for Functionalities and Requirements , 2016 .

[9]  Virpi Roto,et al.  User experience evaluation methods: current state and development needs , 2010, NordiCHI.

[10]  Sang-Heon Lee,et al.  Users’ Satisfaction with Assistive Devices in South Korea , 2014, Journal of physical therapy science.

[11]  George Yeratziotis,et al.  Making ICT accessible for the deaf , 2013, 2013 IST-Africa Conference & Exhibition.

[12]  Z. Zainal Case Study As a Research Method , 2007 .

[13]  Constantine Stephanidis,et al.  The Universal Access Handbook , 2009 .

[14]  Mary R. Power,et al.  Everyone here speaks TXT: deaf people using SMS in Australia and the rest of the world. , 2004, Journal of deaf studies and deaf education.

[15]  Marcia J. Scherer,et al.  Assistive technology: Matching device and consumer for successful rehabilitation. , 2002 .

[16]  G. Gelderblom,et al.  Non-use of provided assistive technology devices, a literature overview , 2004 .

[17]  Frank G Bowe Deaf and Hard of Hearing Americans' Instant Messaging and E-Mail Use: A National Survey , 2002, American annals of the deaf.

[18]  Matthew T. Cole,et al.  Flexible Electronics: The Next Ubiquitous Platform , 2012, Proceedings of the IEEE.

[19]  Wu Xiao Fen,et al.  Using mobile learning way to support learning of the deaf , 2010, 2010 2nd International Conference on Education Technology and Computer.

[20]  Derek Flood,et al.  Usability of mobile applications: literature review and rationale for a new usability model , 2013, Journal of Interaction Science.