Accessible Data Visualizations in Tableau | Salesforce Trailhead
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Accessible Data Visualizations in Tableau : Accessible Data Visualizations in Tab...
The Web Content Accessibility Guideline (WCAG) for Use of Color comes under the Distinguishable section. The guideline states that “color shouldn’t be the only visual means of conveying information.”
When you use color for field values, also use other types of encoding for marks. For example, you can use size or shapes for the same field values to reinforce the differences between marks. Size and shape also convey information about your data.
Add Size to the Marks
To encode your marks with size, drag a field from the Data pane to Size on the Marks card.
To change the size of marks in the view, select Size on the Marks card and then drag the slider to the left or right.
Add Shapes to the Marks
To change the shapes of marks, drag a field from the Data pane to Shape on the Marks card. By default, 20 shapes are used to encode dimensions. If you have more than 20 dimensions, the shapes repeat. Repeating shapes isn’t an accessible experience. If this happens, reduce the marks in your view to fewer than 20.
00:00 Introduction
00:21 Build Accessible Data Visualizations
01:19 Present the Right Amount of Detail
02:18 Provide Descriptive Text
03:19 Use Simple, Easy-to-Understand Language
04:24 Incorporate Color Thoughtfully
#trailhead
#salestraining
#salesforcetrailhead
Accessible Data Visualizations in Tableau : Accessible Data Visualizations in Tab...
The Web Content Accessibility Guideline (WCAG) for Use of Color comes under the Distinguishable section. The guideline states that “color shouldn’t be the only visual means of conveying information.”
When you use color for field values, also use other types of encoding for marks. For example, you can use size or shapes for the same field values to reinforce the differences between marks. Size and shape also convey information about your data.
Add Size to the Marks
To encode your marks with size, drag a field from the Data pane to Size on the Marks card.
To change the size of marks in the view, select Size on the Marks card and then drag the slider to the left or right.
Add Shapes to the Marks
To change the shapes of marks, drag a field from the Data pane to Shape on the Marks card. By default, 20 shapes are used to encode dimensions. If you have more than 20 dimensions, the shapes repeat. Repeating shapes isn’t an accessible experience. If this happens, reduce the marks in your view to fewer than 20.
00:00 Introduction
00:21 Build Accessible Data Visualizations
01:19 Present the Right Amount of Detail
02:18 Provide Descriptive Text
03:19 Use Simple, Easy-to-Understand Language
04:24 Incorporate Color Thoughtfully
5 ماه پیش
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