A Framework for Blind User Interfacing

Abstract

Abstract. There are specific usability requirements that have to be met when developing dual interfaces, that is, graphical user interfaces that are adapted for blind users. These include task adequacy, dimensional trade-off, behavior equivalence, semantic loss avoidance and device independence. Consequently, the development of human-computer interfaces that are based on the task, domain, dialog, presentation, platform and user models has to be modified to take into account these requirements. This paper presents a framework that includes these requirements, allowing for the development of dual interfaces. The framework includes a set of guidelines for interface design, a toolkit for the low effort implementation of the user interface, and a programming library for the inclusion of speech and Braille in applications. A case study of the development of one such dual interface application is also presented.

An Exploratory Study on Blind Users’ Mental Model in Computer Accessibility

“…They concentrated on how to come up with a design that will be able to satisfy both types of users [16]. The main concern of this project was to deliver a set of guidelines that can be used in the dual interface development in accordance with design for all principle.…”

Understanding domain expert's perspectives and expectations in assistive technology

“…Almost all systems developed for the blinds involve the target users in the design stage [4,6,8,9]. Different approaches or methods have been used to develop these systems.…”

“…Another possibility if relying totally on the designer is a mismatch between the designer and the users' expectation. Thus, the involvement of the domain expert in the system development is important to lessen the challenges posed in designing such application [6,7]. Once the feedback from the domain expert is obtained, the target users should be involved throughout the development cycle.…”

“…This is because the designers need to understand the requirements of the blind users in the system application [6,7]. In a design process, requirements from the target users are important in developing the right system and ensuring usability of the system application.…”

Exploring Pervasive Service Computing Opportunities for Pursuing Successful Ageing

“…There are many studies of Human-Computer Interfaces which can support interactions for blind people [25]. Alonso [26] presents a set of guidelines for blind user interface design. Evreinov [25] introduces a novel automated book reader as an assistive technology tool for blind persons.…”