Thread Subject: Re: Action Item #1 - Use of term "'Web Content"

From: Gregg Vanderheiden
Date: Wed, Aug 22 2007 2:35 PM

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Good point



We were trying to make this work - even for content not at a
workstation (e.g. information on wall displays).



But maybe we could say




1) note in definition of General and Red Flash Thresholds




Note 1: Using a 341 x 256 pixel rectangle anywhere on the displayed screen
area when the content is viewed at 1024 x 768 pixels will provide a good
estimate of a 10 degree visual field for standard screen sizes and viewing
distances for workstations. (Higher resolutions are safer so the lower end
of standards workstations is used).






2) note in definition of Relative luminance


Note 2: Almost all computer display systems used today assume sRGB encoding.
Unless it is known that another color space will be used to process and
display the content, authors should evaluate using sRGB colorspace. If using
other color spaces, see Understanding Success Criterion 1.4.




Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.






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From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Peter
Wallack
Sent: Wednesday, August 22, 2007 3:14 PM
To: TEITAC Web/Software Subcommittee
Subject: Re: [teitac-websoftware] Action Item #1 - Use of term "'Web
Content"

Gregg --
Why does the Note in the definition of General and Red Flash mention Web at
all, especially since the General provision for flashing gives an exemption
to 'software' that is under the threshold. Why not just drop 'For general
Web content' entirely? Or is there really something about this heuristic
that only works for the web?

Peter Wallack
Accessibility Program Director
Oracle Corporation



Gregg Vanderheiden wrote:

I had an action item to identify where "web content" was used to determine
whether we needed to define it;

It is used in the following 3 locations. All easily handled


1) a note in definition of General and Red Flash Thresholds


* Note 1: For general Web content, using a 341 x 256 pixel rectangle
anywhere on the displayed screen area when the content is viewed at 1024 x
768 pixels will provide a good estimate of a 10 degree visual field for
standard screen sizes and viewing distances.

Recommendation: Change to Web Pages or leave as is.


2) a note in definition of Relative luminance


Note 2: Almost all systems used today to view Web content assume sRGB
encoding. Unless it is known that another color space will be used to
process and display the content, authors should evaluate using sRGB
colorspace. If using other color spaces, see Understanding Success Criterion
1.4.

Recommendation: Change to "Software and Web Pages"


3) Title of 8.2


8.2 Additional requirements for Web Content Authoring Tools


Recommendation: Remove the words "Web Content"


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

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