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[Bug 13651] New: Missing alt should not be considered conforming in the presence of figcaptions over 50 words in length.

From: <bugzilla@jessica.w3.org>
Date: Wed, 03 Aug 2011 23:50:00 +0000
To: public-html@w3.org
Message-ID: <bug-13651-2495@http.www.w3.org/Bugs/Public/>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=13651

           Summary: Missing alt should not be considered conforming in the
                    presence of figcaptions over 50 words in length.
           Product: HTML WG
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Keywords: a11y, a11ytf
          Severity: normal
          Priority: P2
         Component: HTML5 spec (editor: Ian Hickson)
        AssignedTo: ian@hixie.ch
        ReportedBy: janina@rednote.net
         QAContact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-wg-issue-tracking@w3.org,
                    public-html@w3.org


Created attachment 1020
  --> http://www.w3.org/Bugs/Public/attachment.cgi?id=1020
[2] http://lists.w3.org/Archives/Public/public-html-a11y/2011Aug/0011.html

The Last Call Working Draft of the HTML5 spec considers missing alt
conforming in the presence of figcaption, per the HTML WG Co-Chairs'
decision [1]. However, figure caption usage in certain types of
publications, including some educational and scientific publications,
includes instances where figure captions are much more verbose than
what is useful or approprirate for alternative text. For instance,
some figure captions may be 50, 100, or even more than 250 words long;
and such lengthy figure captions may be too distracting to be useful
to people who are consuming alt . In addition, some of these longer
types of figure caption do not include information that is relevant to
use as an alt substitute. For instance they may instead include
information about experimental methodology used in processing samples,
but without indicating the type of image shown, nor anything about the
results shown in an image. Additional background and a variety of
examples are provided [2].

Missing alt should not be considered conforming in the presence of
figcaptions over 50 words in length, except where the base language is
that of an agglutinative language [3], in which case the threshold for
considering missing alt non-conforming in the presence of figcaption
should be figcaptions of over 20 words in length.

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Received on Wednesday, 3 August 2011 23:50:06 UTC

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