[Bug 25404] New: ALT Guidance bugs

https://www.w3.org/Bugs/Public/show_bug.cgi?id=25404

            Bug ID: 25404
           Summary: ALT Guidance bugs
           Product: HTML WG
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: HTML5 spec
          Assignee: dave.null@w3.org
          Reporter: david100@sympatico.ca
        QA Contact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-admin@w3.org,
                    public-html-wg-issue-tracking@w3.org

Here are some bugs filed against the ALT guidance document that also apply to
HTML5


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.

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Received on Monday, 21 April 2014 18:25:28 UTC