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Hedonic Utility Scale (HED/UT) Modified as a User Experience Evaluation Method of Performing Talkback Tutorial for Blind People

Hedonic Utility Scale (HED/UT) Modified as a User Experience Evaluation Method of Performing Talkback Tutorial for Blind People
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Author(s): Eduardo Emmanuel Rodríguez López (Universidad Autónoma de Aguascalientes, Mexico), Jean Sandro Chery (Instituto Tecnológico de Morelia, Mexico), Teresita de Jesús Álvarez Robles (Universidad Veracruzana, Mexico)and Francisco Javier Álvarez Rodríguez (Universidad Autónoma de Aguascalientes, Mexico)
Copyright: 2020
Pages: 16
Source title: User-Centered Software Development for the Blind and Visually Impaired: Emerging Research and Opportunities
Source Author(s)/Editor(s): Teresita de Jesús Álvarez Robles (Universidad Veracruzana, Mexico), Francisco Javier Álvarez Rodríguez (Universidad Autónoma de Aguascalientes, Mexico)and Edgard Benítez-Guerrero (Universidad Veracruzana, Mexico)
DOI: 10.4018/978-1-5225-8539-8.ch005

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Abstract

Hedonic utility scale is a user experience (UX) evaluation method that, through a questionnaire, collects the hedonic and utilitarian dimensions of a product by rating items belonging to each dimension. In this chapter, it is proposed to adapt this method for its application with blind users using the Google TalkBack tutorial as a case study. Based on Nielsen's heuristics, five blind users rated the tutorial after completing each of its five tasks. To ensure inclusiveness in the adaptation of the method, this could be answered verbally and with the use of cards written in Braille, while, for questions of practicality in the evaluation, the number of items was reduced as well as changed the way of scoring (scale and equations) with respect to the original HED/UT. The scale of grades was ranked from 1 (very little) to 5 (quite), getting TalkBack scores between 4 and 5. The results show that the TalkBack tutorial is generally well accepted and well rated by users in both dimensions (hedonic and utility).

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