(Floe) Accessibility Metadata Automatic Generation by Content Type

Based on content type, it is possible to facilitate the authoring of metadata by automatically generating values based on what is known about the content's context and content type.

Table: Metadata by Content Type

This table attempts to organize the Access for All metadata according to content type - the idea is that certain types of content only require certain metadata.

Example 1: metadata for a video file will likely have Auditory and Visual metadata specified.

Example 2: metadata for an audio file will not require visual metadata - thus those metadata fields can be hidden from the user.

Thus it is possible to:

Only show metadata fields that are required by certain media type and hide unnecessary metadata fields.
Provide sensible defaults based on content type.

AC says: I've added some "questions" to the table as follows:
[x] = I don't think this should be available
[?] = Why is this available? I either don't understand why, or I'm not sure about it

Content Type	Auditory	Tactile	Textual	Visual	Color Dependent	Chart on Visual	Diagram on Visual	Math on Visual	Music on Visual	Text on Visual	Alt Text	Captions	Transcript	Flashing Hazard	No Flashing Hazard	Motion Simulation Hazard	No Motion Simulation Hazard	Sound Hazard	No Sound Hazard

Content Type	Auditory	Tactile	Textual	Visual	Color Dependent	Text on Visual	Captions	Motion Simulation Hazard	No Motion Simulation Hazard
Music / Dialog
Video			`[x: use text-on-visual instead]`
Captions				?		`[x]`
Image
Image: diagram							`[x: here, "captions" have a very specific meaning: "text for the audio portion"]`		`[?: what about animated gifs?]`
Image: text							`[x: see above]`		`[?: see above]`
Image: math							`[x: see above]`		`[?: see above]`
Image: chart							`[x: see above]`		`[?: see above]`
ChemML				?
MathML				?
Sign Language		`[?]`	`[?]`		`[x]`			`[x]`
Braille	`[?]`		`[x]`	`[?]`	`[?]`
Transcript (text)	`[?]`	`[?]`		`[x]`
Long Description (text)				?
Audio Description