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Re: An RDF conformance scheme

From: Dan Brickley <danbri@w3.org>
Date: Thu, 17 Feb 2000 17:31:58 -0500 (EST)
To: Charles McCathieNevile <charles@w3.org>
cc: Marja-Riitta Koivunen <marja@w3.org>, Wendy A Chisholm <wendy@w3.org>, WAI GL <w3c-wai-gl@w3.org>
Message-ID: <Pine.LNX.4.20.0002171727510.1276-100000@tux.w3.org>


On Thu, 17 Feb 2000, Charles McCathieNevile wrote:

> Marja is closer to it... (no, this isn't supposed to be a guessing game!)
> 
> you say something like
> 
> <rdf:Description rdf:resource="http://my.com/somepage">
>   <waiConform:meets>
>     <rdf:Bag>
>       <li resource="some checkpoint URI"/>
>       <li resource="some different checkpoint URI"/>
>       <li resource="some other checkpoint URI"/>
>     </rdf:Bag>
>   </waiConform:meets>
> </rdf:Description>

Actually I wouldn't use the rdf:Bag construct as it overcomplicates the
model for no immediate gain. It also makes querying / inference fiddlier.

I'd use the following (note that I'm web: instead of rdf: for the RDF
namespace; i reckon this reads better...)

 <web:Description web:about="http://my.com/somepage">
   <waiConform:meets web:resource="some checkpoint URI"/>
   <waiConform:meets web:resource="some different checkpoint URI"/>
   <waiConform:meets web:resource="some other checkpoint URI"/>
 </web:Description>



> 
> to describe the checkpoints that something meets. This allows you to make
> some inferences, one of which can also be expressed using the scheme (if I
> have the syntax correct, which is not a very high likelihood) as
> 
> <rdf:Description about="http://my.com/somepage">
>   <waiConform:levelA
> rdf:resource="http://www.w3.org/TR/1999/WAI-WEBCONTENT-19990505"/>
> </rdf:Description>

Not sure what this says, but looks plausible :-)

Dan

> 
> Charles (way out of my RDF depth, which admittedly is only up to my toes...)
> 
> On Thu, 17 Feb 2000, Marja-Riitta Koivunen wrote:
> 
>   At 03:51 PM 2/17/00 -0500, Wendy A Chisholm wrote:
>   >wow, i thought this would be more complicated. <grin>
>   >
>   >Does this mean that someone would use the following markup to claim 
>   >conformance to Level A (for example):
>   >
>   ><rdf:RDF  xmlns:wcag="http://www.w3.org/2000/01/wai-conform-rdf#levelA">
>   ></rdf:RDF>
>   
>   So what does this actually say? How is <wcag:levelA> used? It needs to be
>   attached to a URI of the conforming document somehow.
>   
>   I also wasn't sure how you use wcag:meets, wcag:fails etc.? Don't we at
>   least need the checkpoints e.g. wcag:chp1.1="fails", or maybe they are
>   defined specific to each guideline doc? Can you write some examples?
>   
>   In our schema for annotations we did define Classes and Properties as follows
>   http://www.w3.org/2000/02/collaboration/annotation/annotationschema.htm.
>   
>   Marja
>   
>   >
>   >or is there more to it?
>   >
>   >I was expecting to make some sort of <wcag:property .... > statement, but 
>   >maybe it's not needed?  version of wcag that we're claiming conformance to?
>   >
>   >--wendy
>   >
>   >At 01:00 PM 1/17/00 , you wrote:
>   >>http://www.w3.org/2000/01/wai-conform-rdf
>   >>
>   >>A rough draft at it (since my orignial died). I would like to incude an
>   >>example, but I need to generate it.
>   >>
>   >>Charles
>   >>
>   >>--
>   >>Charles McCathieNevile    mailto:charles@w3.org    phone: +61 (0) 409 134
>   136
>   >>W3C Web Accessibility Initiative                      http://www.w3.org/WAI
>   >>21 Mitchell Street, Footscray, VIC 3011,  Australia
>   >
>   >--
>   >wendy a chisholm
>   >world wide web consortium
>   >web accessibility initiative
>   >madison, wi usa
>   >tel: +1 608 663 6346
>   >/--
>   >
>   
> 
> --
> Charles McCathieNevile    mailto:charles@w3.org    phone: +61 (0) 409 134 136
> W3C Web Accessibility Initiative                      http://www.w3.org/WAI
> Location: I-cubed, 110 Victoria Street, Carlton VIC 3053
> Postal: GPO Box 2476V, Melbourne 3001,  Australia 
> 
Received on Thursday, 17 February 2000 17:31:59 GMT

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