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.
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:
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 | Chart on Visual | Diagram on Visual | Math on Visual | Music on Visual | Text on Visual | Alt | Captions | Transcript | Flashing Hazard | No Flashing Hazard | Motion Simulation Hazard | No Motion Simulation Hazard | Sound Hazard | No Sound Hazard |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Music / Dialog | |||||||||||||||||||
Video | [x: use text-on-visual instead] | ||||||||||||||||||
Captions | ? | [x] | |||||||||||||||||
Image | |||||||||||||||||||
Image: diagram | [x | [?: what about animated gifs?] | |||||||||||||||||
Image: text | [x: see above] | [? | |||||||||||||||||
Image: math | [x | [? | |||||||||||||||||
Image: chart | [x | [? | |||||||||||||||||
ChemML | ? | ||||||||||||||||||
MathML | ? | ||||||||||||||||||
Sign Language | [?] | [?] | [x] | [x] | |||||||||||||||
Braille | [?] | [x] | [?] | [?] | |||||||||||||||
Transcript (text) | [?] | [?] | [x] | ||||||||||||||||
Long Description (text) | ? | ||||||||||||||||||
Audio Description | [x] |
Automatically generate this default value. (i.e. if music, automatically specify hasAuditory)
grey = option is not presented to end user (i.e. don't show it if it isn't needed).
white = available option to end user.
= available option to end user which we recommend they specify (i.e. if the content is an image, we recommend alt text).
? = Unsure if this should be an automatically generated default value.
Modality | Alternative |
---|---|
Auditory |
|
Visual |
|
Tactile |
|
Textual |
|
Question for Inclusion: "Is a particular modality critical to understanding the content?"
This brings up a notion of "primary" and "secondary" modalities
What about the case where there is a combination of primary modalities important to consuming the content? How is this handled?
Thinking aloud - a video requires a user to be able to see AND hear
Now for the "OR" scenario - a video requires that a user be able to see OR hear