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RE: Technique Designations

From: Gregg Vanderheiden <gv@trace.wisc.edu>
Date: Fri, 5 May 2006 11:34:05 -0500
To: "'Chris Ridpath'" <chris.ridpath@utoronto.ca>, "'WCAG'" <w3c-wai-gl@w3.org>
Message-ID: <006301c67061$be0a1bf0$ee8cfea9@NC6000BAK>

Correct.

There are no required techniques.

There are no 'necessary' techniques (same as required). 

There are only sufficient techniques or combinations of techniques,  and
advisory techniques.

Common failures are not really techniques.... but look like them and are
currently in techniques collection document.  



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 Chris Ridpath
Sent: Friday, May 05, 2006 9:07 AM
To: WCAG
Subject: Technique Designations


I've been reading the "understanding" and "technique" documents and think I
get the technique designations.

As I understand it, there are 3 types of techniques:

1) Sufficient - Are the numbered techniques in the "techniques for
addressing" section of each SC. If followed your content will meet SC. You
may have to use more than one "sufficient" tech to meet SC. If not followed
then you've got to use another technique (outside the listed techniques and
not one of the "common failures") to meet SC.

2) Advisory - Do not fall under a SC but are assigned to a guideline. Not
"required" or "sufficient". Affect accessibility. Not assigned a level.

3) Common Failures - If this technique is used then you do not meet the SC.

Required - I've seen the word "required" several times applied to the
technique process but there are no techniques designated as "required".

I've also seen the word "necessary" (on the mailing list) applied to
techniques. I think this is just an oversight as there don't seem to be any
"necessary" techniques.

Does that look about right?

Chris
Received on Friday, 5 May 2006 16:34:43 GMT

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