Re: level of detail in alt, for a "self-describing" SVG

Tossing my $0.02 into the fray,

If you DID go with the first option, I'd suggest:

The Signature has:
 * a type of 'RsaSignature',
 * an issuance date of 3 november,
 * a creator of 'example university public key 11',
 * a signature of 'aeunvaeournvq[e8nv',
 * and a nonce of 123abcfeed321

(i.e. list structure)

...although I also concur with Emmanuelle and Léonie that brevity
(especially in the case of an example) is also a good pattern.

(Kind of reminds me of the old adage about assembling 5 Accessibility SMEs,
giving them an image, and getting back 7 perfectly valid alt text
proposals...)

JF

On Wed, Aug 11, 2021 at 6:30 AM Emmanuelle Gutiérrez y Restrepo <
emmanuelle@sidar.org> wrote:

> Hi Chaals:
>
> Since in this specific case, as you indicate, it is an example and,
> therefore, the specific data is not necessary or useful to understand it; I
> think the best option is the simplest, the one that does not indicate the
> data.
>
> Best,
> *Emmanuelle Gutiérrez y Restrepo*
> Patrono Fundador y Directora General
> Fundación Sidar - Acceso Universal
> email: emmanuelle@sidar.org
> http://sidar.org
>
>
> El 11/08/2021 a las 3:42, Charles 'chaals' (McCathie) Nevile escribió:
>
> Hi folks,
>
> since we don't have a clear mechanism to include a detailed description
> for those who want it, I'm looking for thoughts on a concrete problem:
>
> The context is an acyclic directed graph diagram in a specification.
> Translating to "common jargon", it looks like a flowchart.
>
> I've made an SVG, which includes a <desc> element laying out the pieces,
> and there is text for all the labels. If you read through sequentially it
> is various named containers that each list several labels followed by their
> value.
>
> I think it makes sense to write an alt attribute that describes the core
> pieces in general terms, rather than the complete detail, because it is an
> example anyway.
>
> The sort of difference I am asking about is between on the one hand
>
> "The Signature has a type, of 'RsaSignature', an issuance date of 3
> november, a creator of 'example university public key 11', a signature of
> 'aeunvaeournvq[e8nv', and a nonce of 123abcfeed321".
>
> or on the other hand
>
> "A signature with a nonce, date, algorithm used and a public key for the
> proof's creator".
>
> I have attached one relevant SVG, and its desc element contains text in
> line with the more general alt I am proposing.
>
> cheers
>
>
>
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>


-- 
*John Foliot* |
Senior Industry Specialist, Digital Accessibility |
W3C Accessibility Standards Contributor |

"I made this so long because I did not have time to make it shorter." -
Pascal "links go places, buttons do things"