Rich Screen Reader Experiences for Accessible Data Visualization

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dc.contributor.authorZong, Jonathanen_US
dc.contributor.authorLee, Crystalen_US
dc.contributor.authorLundgard, Alanen_US
dc.contributor.authorJang, JiWoongen_US
dc.contributor.authorHajas, Danielen_US
dc.contributor.authorSatyanarayan, Arvinden_US
dc.contributor.editorBorgo, Ritaen_US
dc.contributor.editorMarai, G. Elisabetaen_US
dc.contributor.editorSchreck, Tobiasen_US
dc.date.accessioned2022-06-03T06:05:40Z
dc.date.available2022-06-03T06:05:40Z
dc.date.issued2022
dc.description.abstractCurrent web accessibility guidelines ask visualization designers to support screen readers via basic non-visual alternatives like textual descriptions and access to raw data tables. But charts do more than summarize data or reproduce tables; they afford interactive data exploration at varying levels of granularity-from fine-grained datum-by-datum reading to skimming and surfacing high-level trends. In response to the lack of comparable non-visual affordances, we present a set of rich screen reader experiences for accessible data visualization and exploration. Through an iterative co-design process, we identify three key design dimensions for expressive screen reader accessibility: structure, or how chart entities should be organized for a screen reader to traverse; navigation, or the structural, spatial, and targeted operations a user might perform to step through the structure; and, description, or the semantic content, composition, and verbosity of the screen reader's narration. We operationalize these dimensions to prototype screen-reader-accessible visualizations that cover a diverse range of chart types and combinations of our design dimensions. We evaluate a subset of these prototypes in a mixed-methods study with 13 blind and visually impaired readers. Our findings demonstrate that these designs help users conceptualize data spatially, selectively attend to data of interest at different levels of granularity, and experience control and agency over their data analysis process.en_US
dc.description.number3
dc.description.sectionheadersPapers Awards Session
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume41
dc.identifier.doi10.1111/cgf.14519
dc.identifier.issn1467-8659
dc.identifier.pages15-27
dc.identifier.pages13 pages
dc.identifier.urihttps://doi.org/10.1111/cgf.14519
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf14519
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectCCS Concepts: Human-centered computing --> Visualization design and evaluation methods; Accessibility design and evaluation methods
dc.subjectHuman centered computing
dc.subjectVisualization design and evaluation methods
dc.subjectAccessibility design and evaluation methods
dc.titleRich Screen Reader Experiences for Accessible Data Visualizationen_US
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