chartOnVisual vs. diagramOnVisual

[chrcarr]

In a past PCG a11y meeting, the issue arose about the difference between chartOnVisual and diagramOnVisual. chartOnVisual - Indicates that the resource contains charts encoded in visual form diagramOnVisual - Indicates that the resource contains diagrams encoded in visual form.

Is there a difference between these? If not, should one be deprecated?

[clapierre]

I think there is a difference. A diagram could be a circuit diagram of a chip, I wouldn't classify that as a chart.

[mattgarrish]

I don't know that the distinction is meaningful to users, though. If it is, why don't we also have graphsOnVisual?

We could probably keep diagramOnVisual if we only wanted one. I think most (all?) charts are also considered diagrams, but the reverse wouldn't be true.

[clapierre]

Consider deprecating these and perhaps come up with a new term such as dataVisualization.

[mattgarrish]

Could try improving the definitions to say that diagramOnVisual is for visual representations of concepts while chartOnVisual is for visual representation of data?

Would that make them distinct enough to keep?

(I guess the oddity would be that flowcharts would be classified as diagrams...)