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RE: Using HTML form controls and links (Success Criterion 4.1.2 (Name, Role, Value))

From: Schnabel, Stefan <stefan.schnabel@sap.com>
Date: Thu, 4 Jun 2009 10:22:20 +0200
Message-ID: <E34714E1E6587741AD32C8E445B6F4AB0168ACF3@dewdfe1o.wdf.sap.corp>
To: "Christophe Strobbe" <christophe.strobbe@esat.kuleuven.be>, <wai-xtech@w3.org>
Cc: <w3c-wai-gl@w3.org>
Hi Christophe,

many thanks for your quick answer!

> None of the techniques is normative. Developers are always allowed to 
> use other techniques that meet the success criteria.

Can you point me to the location where exactly this statement is given
by W3C?

> If you create your own user interface components, you end up at 
> situation D in "Understanding SC 4.1.2" 
> <http://www.w3.org/TR/UNDERSTANDING-WCAG20/ensure-compat-rsv.html>, 
> which has one general technique:
> <http://www.w3.org/TR/2008/NOTE-WCAG20-TECHS-20081211/G10>.

I understand that

http://www.w3.org/TR/2008/NOTE-WCAG20-TECHS-20081211/G10

will contain references to ARIA also as soon the W3C has decided on
this.
Therefore this reference could serve as acknowledgement if procedures
described there have been followed 
and requirements listed are met by the test environment, right?

Regards
Stefan

-----Original Message-----
From: wai-xtech-request@w3.org [mailto:wai-xtech-request@w3.org] On
Behalf Of Christophe Strobbe
Sent: Dienstag, 2. Juni 2009 14:19
To: wai-xtech@w3.org
Cc: w3c-wai-gl@w3.org
Subject: Re: Using HTML form controls and links (Success Criterion 4.1.2
(Name, Role, Value))

Hi Stefan,

At 10:16 2/06/2009, Schnabel, Stefan wrote:
>Hi Rich, Michael,
>
>is
>
><http://www.w3.org/TR/2008/NOTE-WCAG20-TECHS-20081211/H91>http://www.w3
.org/TR/2008/NOTE-WCAG20-TECHS-20081211/H91
>
>absolutely NORMATIVE regarding 
><http://www.w3.org/TR/2008/REC-WCAG20-20081211/#ensure-compat-rsv>Succe
ss 
>Criterion 4.1.2 (Name, Role, Value)?

None of the techniques is normative. Developers are always allowed to 
use other techniques that meet the success criteria.


>For instance, do I violate WCAG 2.0 when I decide NOT to use a 
><select> statement for a combo in my application,
>and choose instead an input with an associated button and ARIA-Markup?
>
><strong>
>  With other words, is applied ARIA an 1:1 alternative to 
>
<http://www.w3.org/TR/2008/NOTE-WCAG20-TECHS-20081211/H91>http://www.w3.
org/TR/2008/NOTE-WCAG20-TECHS-20081211/H91?
></strong>

The above technique is just an HTML technique; it does not assume
WAI-ARIA.
If you don't use a select element but something else combined with 
WAI-ARIA markup, that construct can only pass WCAG 2.0 if it can be 
shown that it is accessibility supported
(<http://www.w3.org/TR/2008/REC-WCAG20-20081211/#accessibility-supported
def>) 
in the human language of the content. If that condition is not 
fulfilled, the construct can never meet SC 4.1.2.
The note to SC 4.1.2 (Name, Role, Value) says: "This success 
criterion is primarily for Web authors who develop or script their 
own user interface components. For example, standard HTML controls 
already meet this success criterion when used according to
specification."
If you create your own user interface components, you end up at 
situation D in "Understanding SC 4.1.2" 
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/ensure-compat-rsv.html>, 
which has one general technique:
<http://www.w3.org/TR/2008/NOTE-WCAG20-TECHS-20081211/G10>.

Does that help?

Best regards,

Christophe

>
>Anything else will lead to BIG discussions. This is a serious question.
>I think industry wants questions like these covered and clarified 
>because you can easily derive legal implications from this.
>
>In case you are NOT the right persons to ask: Who will that be?
>
>Also, it would help if in the ARIA spec a respective clarification 
>could be added.
>
>Best Regards
>Stefan

-- 
Christophe Strobbe
K.U.Leuven - Dept. of Electrical Engineering - SCD
Research Group on Document Architectures
Kasteelpark Arenberg 10 bus 2442
B-3001 Leuven-Heverlee
BELGIUM
tel: +32 16 32 85 51
http://www.docarch.be/
---
"Better products and services through end-user empowerment" 
http://www.usem-net.eu/
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I haven't.
Received on Thursday, 4 June 2009 08:25:31 GMT

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