announce highcharts confusion matrix heatmap tooltip aria label for accessibility #2467
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imatiach-msft
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Dec 21, 2023
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Description
announce highcharts confusion matrix heatmap tooltip aria label for accessibility
[Screen reader – Responsible AI Dashboard – Vision Dashboard>Model overview]: Screen reader does not announce the displayed tooltip information while navigating the 'confusion matrix' chart using arrow keys.
User Experience:
Visually challenged people who rely on screen reader for navigation will not get the information provided in the tool tip and the users will find difficulty to identify the class of the charts.
Note: User credentials should NOT be included in the bug.
Repro Steps:
Open RAI Dashboard
Navigate to the "Model overview" section and select 'Confusion matrix' tab.
Navigate the 'Confusion matrix' chart using arrow keys.
Observe whether screen reader announces the tooltip information or not.
Actual Result:
Screen reader does not announce the displayed tooltip information while navigating the 'confusion matrix' chart using arrow keys.
Observation:
When focus lands on the "Can" data chart, the screen reader announces as "Chart - High charts interactive chart region Interactive chart graphic - Created with High charts 10.1.0 x, 0, y: 0, value: 8. graphic".
Narrator and JAWS do not announce the displayed tooltip information while navigating the 'confusion matrix' chart using arrow keys.
Expected Result:
Screen reader should announce the displayed tooltip information while navigating the 'confusion matrix' chart using arrow keys.
Example: When focus lands on the "Can" data chart, the screen reader should announce as "Chart - High charts interactive chart region Interactive chart graphic - Created with High charts 10.1.0 x, 0, y: 0, value: 8. graphic" - 8 data points should be can, predicted to be can".
Screenshot with aria label for highcharts chart:
Relevant highcharts discussion thread related to this topic:
https://www.highcharts.com/forum/viewtopic.php?f=9&t=47769
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