W3C home > Mailing lists > Public > public-html@w3.org > May 2008

Re: HTML Action Item 54 - ...draft text for HTML 5 spec to require producers/authors to include @alt on img elements.

From: Steven Faulkner <faulkner.steve@gmail.com>
Date: Wed, 21 May 2008 13:58:10 +0100
Message-ID: <55687cf80805210558o54880b24ybdbb274eaedfe15a@mail.gmail.com>
To: "Jon Barnett" <jonbarnett@gmail.com>
Cc: "public-html@w3.org" <public-html@w3.org>, "W3C WAI-XTECH" <wai-xtech@w3.org>, wai-liaison@w3.org, "Dan Connolly" <connolly@w3.org>, "Chris Wilson" <Chris.Wilson@microsoft.com>, "Michael(tm) Smith" <mike@w3.org>

jon,

you wrote:
"Then you're using the same markup for two different semantics:"

not me jon, as I said, this is what the HTML5 spec says.

> In which case, the author's tool, in an attempt to produce conformant
> HTML

how many tools actually output conformant code?

regards
stevef

2008/5/21 Jon Barnett <jonbarnett@gmail.com>:
> On Wed, May 21, 2008 at 4:19 AM, Steven Faulkner
> <faulkner.steve@gmail.com> wrote:
>> i suggest you read the spec, as alt="" does not only mean it  is
>> "purely decorative" it can also mean that the text alternative is
>> supplied in the surrounding text.
>
> Then you're using the same markup for two different semantics: one
> case where that markup means the presence of an image is irrelevant
> and the image should be ignored for the document to make sense, and
> another case where the presence of the image is important and must be
> announced by the UA for the document to make sense.
>
>
>>
>> One thing to note is that a legend is not currently required, so would
>> not conform to WCAG 2.0, which requires a text alternative for all
>> images.
>
> It's been shown what accessibility arise from that, and we're
> discussing solutions.  But saying that "a text alternative is required
> for all images" for accessibility because an accessibility standard
> says so begs the question.
>
>>
>>> b) An image that is vital to content (such as a gallery image) for
>>> which the user simply did not provide text out of laziness:
>>>
>>> <img src="1100670787_6a7c664aef.jpg" ??? >
>>
>> that is simple, and is covered in the proposal, if the author has not
>> provided a text alternative the author has produced a non conformant
>> html5 document.
>
> In which case, the author's tool, in an attempt to produce conformant
> HTML, will insert alt="" or something even more harmful.  Making
> something a conformance requirement won't force novice authors to
> suddenly start writing good content, but it will encourage authoring
> /tools/ to generate markup for the sake of conformance even if it
> defeats the purpose of the conformance requirement.
>



-- 
with regards

Steve Faulkner
Technical Director - TPG Europe
Director - Web Accessibility Tools Consortium

www.paciellogroup.com | www.wat-c.org
Web Accessibility Toolbar -
http://www.paciellogroup.com/resources/wat-ie-about.html
Received on Wednesday, 21 May 2008 12:58:52 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Wednesday, 9 May 2012 00:16:17 GMT