Braille System Using an UX Evaluation Methodology Focused on the Use of Methods for Blind Users

Braille System Using an UX Evaluation Methodology Focused on the Use of Methods for Blind Users

Vanessa Villalpando Serna (Universidad Autónoma de Aguascalientes, Mexico), Jorge E. Herrera (Universidad Autónoma de Aguascalientes, Mexico), Teresita de Jesús Álvarez Robles (Universidad Veracruzana, Mexico) and Francisco Javier Álvarez Rodríguez (Universidad Autónoma de Aguascalientes, Mexico)
DOI: 10.4018/978-1-5225-8539-8.ch007

Abstract

Recently, technology has been advancing and making some aspects of life simpler. Most people have an intelligent mobile device. These devices have applications that support users to perform various tasks. However, these applications are developed for users who don't have any type of disability. This chapter focuses on making use of some tools that exist within the area of software engineering (SE) and user experience (UX) with the aim of developing an interactive software system (ISS). It is expected that this ISS will support people with visual disabilities to learn Braille. To develop the ISS, the authors use modified usability and UX evaluation methods for blind people. The methodology to be followed is based on the ISO15288: 2015 standard of the SE. The methods used to perform the evaluation tests with blind users are card sorting and thinking aloud. Based on the results, it is observed that the ISS complies with most of the UX factors, such as ease of use, accessibility, and utility, so they expect the ISS to be usable for blind people.
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State Of Art

Pérez & Gardey (2008) define the method as a means used to “reach something”; Aguilera Hintelholher (2013) defines the methodology as a term composed of the Greek words “methods” which means procedures and “logos” which means agreement.

Together these words result in the discipline that studies, analyzes, promotes and refines the method.

Regarding the term UX, Arhippainen and Tähti (2003) define it as the experience that the user obtains when interacting with a product under particular conditions, in another work Arhippainen (2003) defines it as the user's emotions and expectations and their relationship with other people and the context of use.

On the other hand, Nielsen and Loranger (2006) indicate that usability can be defined as ease of use. Specifically, it refers to the speed with which one can learn to use something, the efficiency when using it, what is its degree of propensity to error and how much the user likes it.

For these reasons, it is considered that UX and ease of use are one of the most important factors when evaluating the quality of an application.

The quality depends on the user have a positive and comforting perception when use the ISS taking into account that it is easy to use to ensure that the objective of the UX is met.

According to Álvarez, T. (2018), there are currently different methodologies focused on usability to develop ISS, however, most of these methodologies are focused on people with vision and are few that focus on users with visual impairment.

In general, the existing methodologies do not evaluate the UX, for example, Álvarez, T. (2018), mentions MPIu + a de Granollers et al. (2005), which is responsible for developing interactive systems that integrate aspects of usability in the SE life cycle related to accessibility for people with different disabilities; this methodology in Álvarez, T. (2018) is not considered viable because it does not determine the number of evaluations that must be carried out in a system, nor does it specify which methods should be performed or how many users or evaluators should participate.

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