Visualization Accessibility in the Wild: Challenges Faced by Visualization Designers

Joyner, Shakila Cherise; Riegelhuth, Amalia; Garrity, Kathleen; Kim, Yea-Seul; Kim, Nam Wook

doi:10.1145/3491102.3517630

Cited by 22 publications

(15 citation statements)

References 43 publications

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“…Through a thematic analysis, we classified the features into four major categories: alternative text & data tables, keyboard navigation of visualization content, dynamic & large data handling, and low vision support. Overall, most tools did not even support basic accessibility, reaffirming why many visualizations on the Web were not accessible [JRG * 22,FSR * 22]. In addition, we found only a few tools support navigating underlying chart content.…”

Section: Introductionmentioning

confidence: 86%

“…Several studies provide insights on how the speech modality compares with tactile presentation [GMH10, WM18] and sonification [AAH14, SJJJ19]. While all these studies focus on understanding the broad experiences of typical blind people, researchers also studied the perspectives of blind scientists [CBF * 22] and accessibility experts [CPR * 22], struggles and expectations of visualization practitioners [JRG * 22,EBM22].…”

Section: Related Workmentioning

confidence: 99%

“…They also reported what questions blind people ask about the chart to extract information [SWM * 22]. Recent research examined the accessibility status of data visualizations by inspecting them through screen readers [FSR * 22, JRG * 22]. Other studies analyzed and evaluated the quality of alternative texts [WdGH * 22, JMK * 22, LS21, ADL * 02].…”

Section: Related Workmentioning

confidence: 99%

“…In this work, we aim to understand accessible design support from visualization programming and software tools as these tools contribute to the majority of visualizations on the Web [FSR * 22, JRG * 22]. Unlike the previous work analyzing the accessibility of visualizations in the wild [FSR * 22, JRG * 22], we specifically examine the scope of accessibility features provided by the tools.…”

Section: Related Workmentioning

confidence: 99%

“…Many practitioners heavily use existing software and programming libraries to create data visualizations [JRG * 22]. But the extent to which these tools support accessibility is unclear.…”

Section: Introductionmentioning

confidence: 99%

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Beyond Alternative Text and tables: Comparative Analysis of Visualization Tools and Accessibility Methods

Kim

Ataguba

Joyner

et al. 2023

Computer Graphics Forum

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Modern visualization software and programming libraries have made data visualization construction easier for everyone. However, the extent of accessibility design they support for blind and low‐vision people is relatively unknown. It is also unclear how they can improve chart content accessibility beyond conventional alternative text and data tables. To address these issues, we examined the current accessibility features in popular visualization tools, revealing limited support for the standard accessibility methods and scarce support for chart content exploration. Next, we investigate two promising accessibility approaches that provide off‐the‐shelf solutions for chart content accessibility: structured navigation and conversational interaction. We present a comparative evaluation study and discuss what to consider when incorporating them into visualization tools.

show abstract

Section: Introductionmentioning

confidence: 86%

Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

“…Many practitioners heavily use existing software and programming libraries to create data visualizations [JRG * 22]. But the extent to which these tools support accessibility is unclear.…”

Section: Introductionmentioning

confidence: 99%

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Beyond Alternative Text and tables: Comparative Analysis of Visualization Tools and Accessibility Methods

Kim

Ataguba

Joyner

et al. 2023

Computer Graphics Forum

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Enhancing statistical chart accessibility for people with low vision: insights from a user test

Alcaraz-Martínez,

Ribera,

Adeva-Fillol

et al. 2024

Univ Access Inf Soc

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A remote user test was performed with two versions (one accessible and one non-accessible) of three types of web-based charts (horizontal bar chart, vertical stacked bar chart, and line chart). The objectives of the test were: (a) to validate a set of heuristic indicators for the evaluation of the accessibility of statistical charts presented in a previous work (Fariñas Falcón et al. in Mediocentro Electrónica 21(1):65–68, 2017); (b) to identify new barriers and preferences for users with low vision in the access and use of this content not previously contemplated. 12 users were tested, with a variety of conditions associated with low vision: low visual acuity (6 users), reduced central vision (2 users), reduced peripheral vision (2 users), blurry vision (1 user), sensitivity to light (3 users), Nystagmus (2 users) and color vision deficiency (CVD) (4 users). From a quantitative standpoint, accessible versions of charts were more efficient, effective, and satisfactory. From a qualitative point of view, results verify the relevance of heuristics H2, Legend; H3, Axes; H6, Data source (as data table); H10, Safe colors; H11, Contrast; H12, Legibility; H13, Image quality; H14, Resize; H16, Focus visible; H17, Independent navigation; related to the proposed tasks. As new observations, tooltips were highly valued by all users, but their implementation must be improved to avoid covering up significant parts of the charts when displayed. The data table has also been frequently used by all users, especially in the non-accessible versions, allowing them to carry out tasks more efficiently. The position and size of the legend can be a significant barrier if it is too small or appears in an unusual position. Finally, despite the limitations related to color perception, some users prefer color graphics to black and white, so, to target all profiles, it is necessary to redundantly encode categories with colors and patterns as well.

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Toward Inclusion and Accessibility in Visualization Research: Speculations on Challenges, Solution Strategies, and Calls for Action (Position Paper)

Angerbauer

Sedlmair

2022

2022 IEEE Evaluation and Beyond - Methodological Approaches for Visualization (BELIV)

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Visualization Accessibility in the Wild: Challenges Faced by Visualization Designers

Cited by 22 publications

References 43 publications

Beyond Alternative Text and tables: Comparative Analysis of Visualization Tools and Accessibility Methods

Beyond Alternative Text and tables: Comparative Analysis of Visualization Tools and Accessibility Methods

Enhancing statistical chart accessibility for people with low vision: insights from a user test

Toward Inclusion and Accessibility in Visualization Research: Speculations on Challenges, Solution Strategies, and Calls for Action (Position Paper)

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