Evaluating a Tool for Improving Accessibility to Charts and Graphs

Ferres, Leo; Lindgaard, Gitte; Sumegi, Livia; Tsuji, Bruce

doi:10.1145/2533682.2533683

Cited by 55 publications

(31 citation statements)

References 42 publications

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“…Other approaches have exploited auditory solutions, converting the visually-based information into an acoustic format that employs different sonification techniques and auditory parameters (e.g., pitch, loudness, timbre, or tempo) to convey the graphical content [31][32][33]. Additional efforts have explored utilizing languagebased descriptions to convey graphical information [34,35]. Auditory and verbal approaches, however, are not optimal as they are based on an interpretive medium that requires cognitive mediation and greater maintenance in attention [36].…”

Section: Current Solutions For Graphical Accessmentioning

confidence: 99%

The Graphical Access Challenge for People with Visual Impairments: Positions and Pathways Forward

Gorlewicz¹,

Tennison²,

Palani³

et al. 2019

Interactive Multimedia - Multimedia Production and Digital Storytelling

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Graphical access is one of the most pressing challenges for individuals who are blind or visually impaired. This chapter discusses some of the factors underlying the graphics access challenge, reviews prior approaches to addressing this longstanding information access barrier, and describes some promising new solutions. We specifically focus on touchscreen-based smart devices, a relatively new class of information access technologies, which our group believes represent an exemplary model of user-centered, needs-based design. We highlight both the challenges and the vast potential of these technologies for alleviating the graphics accessibility gap and share the latest results in this line of research. We close with recommendations on ideological shifts in mindset about how we approach solving this vexing access problem, which will complement both technological and perceptual advancements that are rapidly being uncovered through a growing research community in this domain.

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Section: Current Solutions For Graphical Accessmentioning

confidence: 99%

The Graphical Access Challenge for People with Visual Impairments: Positions and Pathways Forward

Gorlewicz¹,

Tennison²,

Palani³

et al. 2019

Interactive Multimedia - Multimedia Production and Digital Storytelling

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“…As a result, blindfolded sighted users are often recruited for preliminary or exploratory studies, to examine the usability of non-visual interfaces (e.g. [12]).…”

Section: Performance Of Blind Vs Sighted Participantsmentioning

confidence: 99%

Developing an Extension to an Existing Tactile Authentication Mechanism to Support Non-Visual Interaction

Kuber¹,

Sharma

2012

Imaging and Signal Processing in Health Care and Technology / 772: Human-Computer Interaction / 773: Communication, Internet An

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Authentication mechanisms are often developed without taking into account the needs of users with visual disabilities. In this paper, we describe an extension to an existing tactile authentication system, with the aim of supporting non-visual interaction. Tactile icons are presented in a timed sequence at one fixed point on the interface, reducing the need to navigate using a mouse. Findings from an evaluation with 16 blind and blindfolded participants revealed that tactile authentication sequences (termed: tactile passwords) could be recognized over a month-long period, with a 76.8% rate of accuracy on the first attempt to access the system. While the approach was found to address security concerns identified through literature (e.g. threats from third parties and hidden cameras), findings have indicated that usability was compromised to achieve accessibility. The study has provided insights for interface designers interested in developing inclusive authentication mechanisms using touch.

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“…In response, blindfolded sighted users are recruited for preliminary or exploratory studies. Studies have shown that no major differences were identified in response times between groups of sighted and blind users (Ferres et al, [8]). However, results from the authors' study revealed that blind participants were found to select more commands, compared to their sighted counterparts.…”

Section: Participant Selectionmentioning

confidence: 99%

Developing and Evaluating a Non-Visual Memory Game

Kuber

Tretter

Murphy

2011

Human-Computer Interaction – INTERACT 2011

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This paper describes the development of a non-visual memory game based on the classic game ‗Simon™', where users are presented with a sequence of stimuli, which they need to replicate in the same order to progress to the next level. Information is presented using a combination of speech, nonspeech audio and/or haptic cues, designed to aid blind users who are often excluded from mainstream gaming applications. Findings from an empirical study have revealed that when haptic feedback was presented in combination with other modalities, users successfully replicated more sequences, compared with presenting haptic feedback alone. We suggest that when developing a nonvisual game using an unfamiliar input device, speech-based feedback is presented in conjunction with haptic cues.

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Evaluating a Tool for Improving Accessibility to Charts and Graphs

Cited by 55 publications

References 42 publications

The Graphical Access Challenge for People with Visual Impairments: Positions and Pathways Forward

The Graphical Access Challenge for People with Visual Impairments: Positions and Pathways Forward

Developing an Extension to an Existing Tactile Authentication Mechanism to Support Non-Visual Interaction

Developing and Evaluating a Non-Visual Memory Game

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