Hi Steve
A couple a thoughts...
1) I think screen reader users should be explicitly informed that
information below is the alternative... rather than deducing it from the
heading above the alternative.
alt="Flowchart: Dealing with a broken lamp.">
I would add "full description below"
alt="Flowchart: Dealing with a broken lamp. Full description below">
========
alt="Bar chart: Average rainfall in millimetres by Country and Season."
Same here
alt="Bar chart: Average rainfall in millimetres by Country and Season.
Table of data below"
2) I'm not sure of "more than a couple of sentences" being the guidance for
providing a long text alternative. I've always understood it to be if it
requires more than about 100 words, OR if there is a necessity to structure
it, then a long and structured description should be provided. A couple of
sentences means about 20 words. Do we really want people to start requiring
a long description if the alt is more than 20 words? Remember, the general
public will take this document as the final word... I would like other's
thoughts on this.
3) Also I think we need an example of the long description immediately
following the image, where it is hidden in an expandable tag such as the
Details/Summary (or a JavaScript fallback) .... every developer I know
resists long text following an image because they don't want to give up the
page real estate.
Cheers,
David MacDonald
*Can**Adapt* *Solutions Inc.*
Tel: 613.235.4902
LinkedIn <http://www.linkedin.com/in/davidmacdonald100>
www.Can-Adapt.com
* Adapting the web to all users*
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On Sun, Apr 20, 2014 at 2:06 PM, Steve Faulkner <faulkner.steve@gmail.com>wrote:
>
> here is an updated draft of the alt text standalone doc I have been
> threatening to prepare but not actually delivered on until now.
>
> Its still needs a little work, but is almost ready. This is intended to be
> published as a note.
>
> HTML5: Techniques for providing useful text alternatives
>
> W3C Editor's Draft 20 April 2014
>
> http://rawgit.com/w3c/alt-techniques/master/index.html
>
> --
>
> Regards
>
> SteveF
> HTML 5.1 <http://www.w3.org/html/wg/drafts/html/master/>
>