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RE: RE 3.2 was 3.4

From: John M Slatin <john_slatin@austin.utexas.edu>
Date: Thu, 26 Feb 2004 09:41:24 -0600
Message-ID: <C46A1118E0262B47BD5C202DA2490D1A1E30B6@MAIL02.austin.utexas.edu>
To: "Gregg Vanderheiden" <gv@trace.wisc.edu>, <w3c-wai-gl@w3.org>
Some responses to Gregg's comments:
1. Level 1 Success Criterion #1: "... at least one presentation format":
The "presentation format" I had in mind here was the screen reader's
deafult reading-order-- that is, the order in which content appears in
the source document (at least in HTML). The resource would meet this
criterion even if there were multiple visual layouts so long as the
order remains the same in the source document.  I don't know what
happens to this one in scenarios like the ones Yvette listed in which
there isn't exactly a source document as there is for static HTML.
Level 2 Success Criterion #3: Gregg asks how I'm proposing that the
target of each link be clearly identified: through link test (including
alt text for graphical links) and/or graphics (for example, an icon
shows the image of an envelope; the alt text says "Email").
Level 2 Success Criterion #5 (calls for graphical elements that appear
on multiple screens to have same text equivalents wherever they appear):
Gregg comments that this is "OK but strict adherence is difficult
because it's hard to know how [the graphical elements] will be used."
Response: Would it solve this to change the wording as follows:
<begin proposed rewording for L2 SC5>
Graphical components that appear on multiple screens <insert>and serve
the same purpose on each screen,</insert> including graphical links, are
associated with the same text equivalents wherever they appear
</end proposed rewording>

"Good design is accessible design." 
Please note our new name and URL!
John Slatin, Ph.D.
Director, Accessibility Institute
University of Texas at Austin
FAC 248C
1 University Station G9600
Austin, TX 78712
ph 512-495-4288, f 512-495-4524
email jslatin@mail.utexas.edu
web http://www.utexas.edu/research/accessibility/


-----Original Message-----
From: w3c-wai-gl-request@w3.org [mailto:w3c-wai-gl-request@w3.org] On
Behalf Of Gregg Vanderheiden
Sent: Thursday, February 26, 2004 12:50 am
To: w3c-wai-gl@w3.org
Subject: RE 3.2 was 3.4

Thanks John


This is great progress


Some comments 


-  Do we have a better or more generic word for screen?   Page?  Doc? 

- level 1 items cannot dictate format of presentation.  Moved two items
down to level 2

-  might want to move some things to level 3 that are hard to do for all
sites (to keep from preventing L2 conformance)

-  Some additional notes in brackets below.



Begin proposed wording for Guideline 3.4

3.4  Organize content consistently from  to screen and make interactive
components behave in predictable ways. 

Success criteria for Level 1

1.	[L2?] Components that are repeated on multiple screens within a
resource or a section of a resource occur in the same sequence each time
they are repeated, for at least one presentation format. 
2.	Structural markup is used to group related elements.   [what
about technologies that don't allow this?] 
3.	Any extreme change of context such as an automatic redirect or a
link that opens a new browser window is implemented in a manner that can
be programmatically identified. 
4.	[L2?] Except for submit buttons, form controls, options within
form controls, and menu items that are part of page content can be
selected without causing submission of the form.  [this dictates
interface design] 

Success criteria for Level 2

1.	[L3? - pretty specific. Put order at level 2 and  position L3?]
Components that appear visually on multiple screens, such as navigation
bars, search forms, and sections within the main content, are displayed
in the same location relative to other content on every screen where
they appear. 
2.	Visual layout is used to group related components. [ so that
behavior is predictable. ] 
3.	The target of each link is clearly identified.   [how do we do
this?]  [ Level 3?] 
4.	Link text, including alt text for graphical links, includes
words or phrases that occur in the title element of the destination
screen. [js note: Do we need a criterion about informative page titles
here? I know we discussed one somewhere but I don't remember where.]
5.	Graphical components that appear on multiple screens, including
graphical links, are associated with the same text equivalents wherever
they appear.   [these are ok guidelines - but strict adherence is pretty
restrictive since you don't know how they might be used.  L3?] 
6.	Interactive elements that appear on multiple screens, including
graphical elements, are associated with the same functionality wherever
they appear. 
7.	Explicit notice is given in advance of any extreme change of
context such as an automatic redirect or a link that opens a new browser


Success Criteria for Level 3

1.	When components such as navigation bars and search forms appear
on multiple pages, users can choose to have those elements presented in
a different visual position or reading-order. 
2.	There are no extreme changes of context such as automatic
redirects or automatically appearing pop-up windows. 





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/



Received on Thursday, 26 February 2004 10:41:25 UTC

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