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

Re: fear of "invisible metadata"

From: Maciej Stachowiak <mjs@apple.com>
Date: Mon, 18 Jun 2007 18:08:53 -0700
Message-Id: <25E5BD2F-2C90-419C-A1A1-61A56FB1264F@apple.com>
Cc: Lachlan Hunt <lachlan.hunt@lachy.id.au>, public-html@w3.org
To: Gregory J. Rosmaita <oedipus@hicom.net>

On Jun 18, 2007, at 10:24 AM, Gregory J. Rosmaita wrote:

> Lachlan Hunt wrote, quote:
>> No, even if the summary attribute were added to HTML5, it
>> certainly shouldn't be required.
> unquote
> why not?  CAPTION is akin to ALT text - it provides a terse  
> description
> of the object that cannot be visually perceived; the summary attribute
> itself serves the same purpose as LONGDESC (which provides a detailed
> description, orientational material, etc.)

ALT should not be required either. It leads to pointless alt="" on  
images that have no reasonable text equivalent, just to satisfy  
conformance checkers. 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.

Received on Tuesday, 19 June 2007 01:09:04 UTC

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