FW: combining 3.2 L3 SC1 and L2 SC3

Forgot to send to all.

  _____  

From: Li, Alex 
Sent: Tuesday, October 25, 2005 11:46 AM
To: 'Gregg Vanderheiden'
Subject: RE: combining 3.2 L3 SC1 and L2 SC3 


Hi all,
 
I went back to the original text of the SC to examine the difference.
According to the June 30th draft, L3 SC1 says "Graphical components that
appear on multiple pages, including graphical
<http://www.w3.org/TR/2005/WD-WCAG20-20050630/#linkdef> links, are
associated with the same text equivalents wherever they appear.".  The
biggest difference between the proposed SC and the June SC is that we
changed from "same" to "consistent".
 
That leaves us with two options: 
 
Option A-varify that there is no way to fail L3 SC1 if L2 SC3 is
fulfilled and delete L3 SC1.  I don't think it is possible to fail L3
SC1 if L2 SC3 is met, given that the SC are written in its current
forms.
 
Option B-change L3 SC1 to "Non-text content that appears on multiple
delivery units and has the same
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guideline_3.2#samefunct
iondef> function has the same text alternatives."  This option implies
that we demand the "same" text alternative or equivalent in level 3,
given that we know that the sc won't be applicable in some fairly common
situations where icons are used.  
 
I don't see any appropriate technique to help web designers meet the L3
sc1 in option B in those situations where icons are used for multiple
purposes for good reasons (traffic lights and document download icons).
Assuming no technique is found, then we are still back to where we
were--no real difference between the two SC.  I would argue that there
is no reason to selection option B because L2 SC3 guide doc contains a
common failure that says labelling "search" and "find" for the same
function and icon would fail L2 SC3.  Assuming that we keep the common
failure in place, I think the only logical decision is to remove L3 SC1.
 
All best,
Alex
 



  _____  

From: public-wcag-teama-request@w3.org
[mailto:public-wcag-teama-request@w3.org] 
Sent: Tuesday, October 25, 2005 7:51 AM
To: public-wcag-teama@w3.org
Subject: combining 3.2 L3 SC1 and L2 SC3 



1.) David, Alex, and I  have an action item to look a SC1 with 3.2 L2
SC3.   (Last week, we couldn't come up with any techniques for the L3
item that wouldn't already be covered by the L2 SC.)

 

Everyone - can you think of anything that would be covered by L3 SC1
that isn't covered by L2 SC3  (that isn't made up or trivial)??

I'll post a separate email that you can respond to on this.  Then Alex,
David and I will finish this up.

 

 

 

For your info - here is Level 2 and Level 3 of 3.2

 

Please send your thoughts

 

 


Level 2 Success Criteria for Guideline 3.2 


1.	Changing the setting of any input field does not automatically
cause a change
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guideline_3.2#context-c
hangedef> of context. (Guide
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guide_to_3.2_L2_SC1> to
3.2 L2 SC1) 

2.	Components that are repeated on multiple delivery
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guideline_3.2#deliveryu
nitdef> units within a set of delivery units occur in the same
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guideline_3.2#relorderd
ef> relative order each time they are repeated. (Guide
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guide_to_3.2_L2_SC2> to
3.2 L2 SC2) 

3.	Components that have the same
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guideline_3.2#samefunct
ionalitydef> functionality in multiple delivery
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guideline_3.2#deliveryu
nitdef> units within a set of delivery units are labeled consistently.
(Guide
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guide_to_3.2_L2_SC3> to
3.2 L2 SC3) 

[edit
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guideline_3.2&action=ed
it&section=4> ]


Level 3 Success Criteria for Guideline 3.2 


1.	Non-text content that appears on multiple delivery units and has
the same
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guideline_3.2#samefunct
iondef> function has consistent text alternatives. (Guide
<http://trace.wisc.edu/wcag_wiki/index.php?title=Guide_to_3.2_L3_SC1> to
3.2 L3 SC1) 

 


Gregg

------------------------

Gregg C Vanderheiden Ph.D. 
Professor - Depts of Ind. Engr. & BioMed Engr.
Director - Trace R & D Center 
University of Wisconsin-Madison 
< <http://trace.wisc.edu/> http://trace.wisc.edu/> FAX 608/262-8848  
For a list of our list discussions http://trace.wisc.edu/lists/

 <http://trace.wisc.edu:8080/mailman/listinfo/>