W3C home > Mailing lists > Public > public-html@w3.org > June 2007

Re: fear of "invisible metadata"

From: Joshue O Connor <joshue.oconnor@cfit.ie>
Date: Tue, 19 Jun 2007 10:53:45 +0100
Message-ID: <4677A7A9.3040809@cfit.ie>
To: public-html@w3.org
Cc: Maciej Stachowiak <mjs@apple.com>

Maciej Stachowiak wrote:
> It leads to pointless alt="" on images that have no reasonable text equivalent, just to satisfy conformance checkers.

Its not pointless as in reality using alt="" means that the image is
effectively ignored by the UA. This method is not used just to satisfy
conformance checkers, it has a practical application that is useful to
people with disabilities.

>And that is actively harmful, because AT can't tell the difference between a semantically null image and a semantically meaningful image with no text alternative. 

How is it harmful? Using it will render the presentational image
semantically void. Anything else that needs to be ascribed a meaning
should then use it with some meaningful text. In each case it is useful.

Received on Tuesday, 19 June 2007 09:53:59 UTC

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