- From: Gregg Vanderheiden <gv@trace.wisc.edu>
- Date: Tue, 14 Feb 2006 23:57:36 -0600
- To: "'Jason White'" <jasonw@ariel.its.unimelb.edu.au>, <w3c-wai-gl@w3.org>
Where is the writeup that explains exactly what the DI group meant by these terms. The definition clearly fits what we want. But it may, as Jason points out, mean something quite different than its definition seems to imply. (or another way to interpret the definition). I tried to look through the DI docs for Authored Units - and I don't find any occurances of the term in connection with breaking up an authored unit to create delivery units. Instead I found Decomposition The act of dividing up one or more authored units, or an aggregated authored unit, during creation of a set of perceivable units appropriate for a particular delivery context. Given the perceivable units are only created by user agents (e.g. at the users end)- it would appear that this breaking up occurs after delivery. Authored units MAY be authored to be different delivery units. Even different primary resources. But I think that still fits many of our guidelines quite well. So maybe a combination of the terms 1) Authored unit 2) primary resource 3) delivery unit Also note that the definition of WEB PAGE is rather ideal -- but it implies a page - so is limited not by its definition but by the common understanding of the word page. Web Page A collection of information, consisting of one or more resources, intended to be rendered simultaneously, and identified by a single Uniform Resource Identifier. More specifically, a web page consists of a resource with zero, one, or more embedded resources intended to be rendered as a single unit, and referred to by the URI of the one resource which is not embedded. This term was developed from the definition of web page in Web Characterization Terminology & Definitions Sheet. Would meet the various needs of our guidelines. IT would be nice if we Gregg -- ------------------------------ Gregg C Vanderheiden Ph.D. Professor - Ind. Engr. & BioMed Engr. Director - Trace R & D Center University of Wisconsin-Madison The Player for my DSS sound file is at http://tinyurl.com/dho6b -----Original Message----- From: w3c-wai-gl-request@w3.org [mailto:w3c-wai-gl-request@w3.org] On Behalf Of Jason White Sent: Tuesday, February 14, 2006 11:19 PM To: w3c-wai-gl@w3.org Subject: Re: BIG ISSUE -- re Delivery Units On Tue, Feb 14, 2006 at 10:59:57AM -0500, Tim Boland wrote: > > The definition of "authored unit" from Device Independence Glossary [1] is: > > "Some set of material created as a single entity by an author. > Examples include a collection of markup, a style sheet, and a media > resource, such as an image or audio clip" As I remember, one of the problems in the WCAG context was that some of the success criteria had to apply to the units delivered to the user agent, rather than those created by the author. The materials created by the author may be split up, combined with others in various ways and transformed by server-side processes before ultimate delivery to the user-agent. As I remember, it was decided that WCAG guidelines should apply to what was sent out to the user-agent rather than to whatever form the content was in when created by the author.
Received on Wednesday, 15 February 2006 05:57:55 UTC