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Re: NEW: Issue #1761

From: Johannes Koch <koch@w3development.de>
Date: Fri, 09 Dec 2005 09:54:40 +0100
Message-ID: <43994650.2070803@w3development.de>
To: w3c-wai-gl@w3.org

bugzilla@webby.trace.wisc.edu wrote:

>   Issues with "delivery unit"
>     -> http://trace.wisc.edu/bugzilla_wcag/show_bug.cgi?id=1761

"Also, "delivery unit" is not the same as "page" in most cases. In 
retrieving a page, a user agent typically makes a number of HTTP 
requests - for style sheets, images, etc., after retrieving the XHTML, 
SVG etc., document that refers to them. If by "page" we mean just the 
XHTML or SVG document, then the statement in the WCAG 2.0 draft that 
delivery units and pages are often equivalent is correct; but I suspect 
that whatever people mean by "page" (an ambiguous term, admittedly), 
they wish to include at least some of the additional resources that are 
typically retrieved in separate HTTP requests after the document, in a 
markup language, is obtained."

I had a problem with the definition, too. So I asked the DI group 
(<<http://lists.w3.org/Archives/Public/www-di/2005Aug/0001>
 >).

According to the DI WG, a deliviery unit _is_ the result of a main 
request _and_ the additional requests automatically generated by the 
uaser agent. See Rotan's reply at 
<http://lists.w3.org/Archives/Public/www-di/2005Aug/0002.html>. 
Unfortunately, the DI glossary does not include this definition :-(
-- 
Johannes Koch
In te domine speravi; non confundar in aeternum.
                             (Te Deum, 4th cent.)
Received on Friday, 9 December 2005 09:20:45 GMT

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