- From: Christophe Strobbe <Christophe.Strobbe@esat.kuleuven.be>
- Date: Sun, 06 Nov 2005 19:38:28 +0100
- To: <w3c-wai-gl@w3.org>
Paul Walsh asked: <blockquote> Can you please provide a real example of an assistive technology doesn't work as a result of invalid code, where all WAI guidelines pass? As I said, if an assistive technology doesn't work properly, it must fail at least one guideline, resolve the issue that causes that failure and you have no need for validity. </blockquote> At 10:38 5/11/2005, Roberto Scano (IWA/HWG) replied: <blockquote> Try for e.g. a page with follow elements unclosed: - table - td - tr - ul - blockquote - a Try also a page with: - scripting errors - numbered "id" attribute - non-sgml charset presented with encoding different than utf-8 And finally test all these with text/html browser and with application/xhtml+xml. And please don't said that there are no accessible Browser that support application/xhtml+xml: we are defining new guidelines, and not wcag 1.1 for fix wcag 1.0 mistakes (like, for eg.colour contrast for text at level 3 or web app that should work without js at level 1). </blockquote> The first list (unclosed elements) contains only wellformedness violations instead of examples of invalid code. I don't believe that anyone on this list who does not require validity at level 1, would want to tolerate wellformedness violations. In the last editor's draft before the 30 June 2005 Working Draft, there was actually a proposal about wellformedness. The success criterion we had at level 3 was not just about validity against a DTD or other formal schema, but about using the technologies according to specification, which goes slightly further than mere validity (because a DTD or formal schema does not always define all correct uses of the document type). Let's not discuss formal validity of code, but using technologies according to specification. I find the latter much more interesting and helpful. Regards, Christophe Strobbe -- Christophe Strobbe K.U.Leuven - Departement of Electrical Engineering - Research Group on Document Architectures Kasteelpark Arenberg 10 - 3001 Leuven-Heverlee - BELGIUM tel: +32 16 32 85 51 http://www.docarch.be/
Received on Sunday, 6 November 2005 18:39:49 UTC