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Re: EARL in Page Valet

From: Nick Kew <nick@webthing.com>
Date: Mon, 4 Feb 2002 03:27:54 +0000 (GMT)
To: <w3c-wai-er-ig@w3.org>
Message-ID: <20020204031747.F8737-100000@fenris.webthing.com>
On Sun, 3 Feb 2002, Nick Kew wrote:

> I've put up a second Page Valet+EARL prototype.  This one has dropped the
> XHTML, and is somewhat more considered.  It's still at
> <URL:http://valet.webthing.com/page/wai.html>

OK, this is now updated: please take a look.

> Some Issues:
> (1) testSubjects are now references into the document being checked,
>     and take three formats:
>     * Validation - the overall result is the URL - that's fine
> 	http://foo.bar/docname.html

Added an overall result to accessibility testing: Pass and Fail, each
with two confidence levels (high confidence pass is very hard at
any accessibility test suite).

>     * Validation messages - use a fragment to identify line and column
> 	http://foo.bar/docname.html#(16,37)

Changed this as per sbp's suggestion

>     * Accessibility checks - reference an element in the normalised
>       parse tree.  I'm aiming for a "fuzzy Xpointer" (as discussed
>       in IRC), but there's some significant hacking to visval
>       required first
> 	http://foo.bar/docname.html#e12		(now)
> 	http://foo.bar/docname.html#1/4/1	(goal)

Goal now reached.  Jim's going to see if this is any use to him
a clientside app.

> (2) testObjects for validation messages are a placeholder.  I don't
>     know what really makes sense

Updated, but still not very useful.

> (3) I've used predicates (passes|fails) for validation messages, and
>     suspectAgainst for accessibility warnings.  Next step is to
>     generate confidence levels from visval, so we can distinguish
>     between definite problems, and issues flagged for manual inspection.

Confidence levels now implemented.

> Comments, criticisms, and especially help, invited.

Thanks to Sean for his comments: I've used some of them, and will
endeavour to use more as time and round tuits permit.

Anyone else?

Nick Kew

Site Valet - the mark of Quality on the Web.
Received on Sunday, 3 February 2002 22:27:58 UTC

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