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RE: RELATED ISSUE AUTHORED UNIT

From: Bailey, Bruce <Bruce.Bailey@ed.gov>
Date: Thu, 9 Feb 2006 09:03:25 -0500
Message-ID: <CCDBDCBFA650F74AA88830D4BACDBAB50B2D4B8F@wdcrobe2m02.ed.gov>
To: <w3c-wai-gl@w3.org>
I am fairly certain that some of the references below are meant to be perceivable unit and not delivery unity.  I am still not clear in the difference in meaning between the (current) perceivable unit and the (proposed) web unit.
 
Consider a "web page" consisting of a couple or three frames.  Obviously, this constitutes a single Web Unit.  I think it also constitutes a single perceivable unit.  How then, does an SC like 2.4.4 make sense with the new term?
 
2.4.4 (as proposed):  Web Units have titles.
 
Is only one title required per Web Unit?
Sometimes a Web Unit is a page, sometimes it is only part of a page?
Sometimes a Web Unit is a Delivery Unit, sometimes it is a Perceivable Unit?
 
I suspect that replacing some instances of Delivery Unit in the SC with Perceivable Unit will eliminate much of the confusion.  Some of those can even be replaced with just "content".  Mind you, I am no fan of the whole authored/delivery/perceivable unit vernacular, but Web Unit seems to introduce as many problems as it solves, and it is almost as opaque.
 
I still like:
 
Structure:
1.      The way the parts of content are organized in relation to each other and;
2.      The way content is organized.
 

-----Original Message-----
From: Gregg Vanderheiden [mailto:gv@trace.wisc.edu]
Sent: Wednesday, February 08, 2006 11:45 PM
To: Bailey, Bruce; w3c-wai-gl@w3.org
Subject: RE: RELATED ISSUE AUTHORED UNIT



No 

 

If you download a page - the page is a D U.  But every image on the page is also a D U.  

 

With the Web Unit - only the page is a W U.   

 

This is important because most of our guidelines where we say  D U  cannot be met by most Delivery Units.   So we can use Delivery Unit as currently defined and we can't re-define it.  

 


Gregg


 


  _____  


From: w3c-wai-gl-request@w3.org [mailto:w3c-wai-gl-request@w3.org] On Behalf Of Bailey, Bruce
Sent: Wednesday, February 08, 2006 8:06 PM
To: w3c-wai-gl@w3.org
Subject: RE: RELATED ISSUE AUTHORED UNIT

Isn't the (old) "perceivable unit" the same thing that is meant by (new) Web Unit?  As per Gregg's note earlier today, the only SC that uses perceivable unit is 2.4.3.  Both delivery unit and perceivable unit are used to define content however.

The simple term "content" works well in the definition of structure (below).


-----Original Message-----
From:   w3c-wai-gl-request@w3.org on behalf of Gregg Vanderheiden
Sent:   Wed 2/8/2006 4:36 PM
To:     w3c-wai-gl@w3.org
Cc:    
Subject:        RELATED ISSUE   AUTHORED UNIT

The only place we use AUTHORED UNIT is in the definition of Structure

structure

1.      The way the parts of an authored < http://www.w3.org/WAI/GL/WCAG20/appendixA.html#authored-unitdef>  unit are organized in relation to each other and;

2.      The way a collection of authored units is organized in relation to a delivery unit and;

3.      The way a collection of delivery < http://www.w3.org/WAI/GL/WCAG20/appendixA.html#deliveryunitdef>  units is organized

Suggest that we change this definition to

structure

1.      The way the parts of an Web Unit are organized in relation to each other and;

2.      The way a collection of Web units is organized.

(If we use a term other than Web Unit - substitute the new word for Web Unit above. ) 
Received on Thursday, 9 February 2006 14:03:40 GMT

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