[Fwd: Euracert vocabulary]

Hi group,

Ref: <http://lists.w3.org/Archives/Public/public-powderwg/2008Jul/0000>

This thread on the POWDER WG mailing list may be interesting. We've had 
a long standing intention of developing such a vocabulary for WCAG 2.0. 
Would be important to start developing one so that the POWDER WG folks 
can work with.

Regards,
   Shadi


-------- Original Message --------
Subject: Euracert vocabulary
Resent-Date: Wed, 02 Jul 2008 13:07:37 +0000
Resent-From: public-powderwg@w3.org
Date: Wed, 02 Jul 2008 14:06:45 +0100
From: Phil Archer <parcher@icra.org>
Organization: FOSI
To: Public POWDER <public-powderwg@w3.org>

Bcc. Quatro Plus consortium

After a good deal of going back and forth, I'm pleased to be able to
post this to the list - it's the Euracert accessibility vocabulary. Lots
of names here but the basic thing is that Alan's created this on behalf
of Technosite using the UWEM methodology [1] of testing against the W3C
WCAG guidelines!

The vocabulary is quite long but pretty straightforward. For each WCAG
(1.0) checkpoint there's a testing method, defined by UWEM at [2]. Hence
the vocabulary defines a load of properties with a name of the form
cpx.y_compliance. These carry an rdfs:isdefinedBy property linking to
[2] and an rdfs:seeAlso property pointing to the WGAG checkpoint from
which the test is derived.

But... the more usual way of describing a web site or other bunch of
resources as being accessible is using the A, AA and AAA levels and
these are defined as OWL classes, each with a series of property
restrictions - i.e. the list of checkpoints that must have been passed
to reach that level. AAA is a sub class of AA which is a subclass of A.
The vocabulary also includes a load of metadata.

Using the vocabulary as Technosite/Euracert and, (I think/hope) Segala,
will, creates a DR like this:

<dr>
    <iriset>
      <includehosts>example.com</includehosts>
    </iriset>

    <descriptorset>
      <is>http://www.euracert.org/rdfs/vocabularyv01#uwem10_A</is>
      <displaytext>The www.aena.es webiste conforms to
       Euracert AA</displaytext>
      <displayicon
          src="http://www.euracert.org/images/euracert_logoAA.gif" />
    </descriptorset>
</dr>

The attached powder.xml file shows how a full POWDER document would
look. I believe Alan will have the vocabulary (and the Technosite FOAF
file) online soon.

Note that this example uses the <is> element within the descriptorset
which is under active discussion within the working group. An
alternative encoding would be

<descriptorset is="http://www.euracert.org/rdfs/vocabularyv01#uwem10_A">
    <displaytext>The www.aena.es webiste conforms to
         Euracert AA</displaytext>
    <displayicon
         src="http://www.euracert.org/images/euracert_logoAA.gif" />
</descriptorset>

Either way, in POWDER-S the IRI set would be a sub class of
http://www.euracert.org/rdfs/vocabularyv01#uwem10_A. Whichever we end up
using will also apply to mobileOK.

Cheers

Phil.


[1] http://www.wabcluster.org/uwem1/
[2] http://www.wabcluster.org/uwem/tests/


-- 
Shadi Abou-Zahra - http://www.w3.org/People/shadi/ |
   WAI International Program Office Activity Lead   |
  W3C Evaluation & Repair Tools Working Group Chair |