Thread Subject: Re: Color
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From: Hoffman, Allen
Date: Mon, Aug 20 2007 6:35 AM
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I don't believe that the WCAG language will make educating folks on what
this requirement means easier, and would suspect it would make this more
difficult. harmonizing is great when we both end up with better
language--but in reality WCAG nor 508 have different objectives for the
provision, so lets aim for the less complicated language. "color
differences" really complicates this to me as a reader and in theory I
know what we are after.
Allen Hoffman -- = EMAIL ADDRESS REMOVED = ; v: 202-447-0303
-----Original Message-----
From: = EMAIL ADDRESS REMOVED =
[mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of Gregg
Vanderheiden
Sent: Sunday, August 19, 2007 4:29 PM
To: 'TEITAC Web/Software Subcommittee'
Subject: Re: [teitac-websoftware] Color
When we had language like this - it kept being interpreted by people as
meaning that you couldn't present information using colored text.
We also had comments in WCAG - that's what led us to 'color differences'
or "differences in color".
Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.
> -----Original Message-----
> From: = EMAIL ADDRESS REMOVED =
> [mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of
> Andrew Kirkpatrick
> Sent: Sunday, August 19, 2007 1:42 PM
> To: TEITAC Web/Software Subcommittee
> Subject: Re: [teitac-websoftware] Color
>
> I'd be happy with:
> Color must not be used as the only visual means of conveying
> information.
>
> I think that this covers the list, is shorter than wcag, and doesn't
> have the heavy "simultaneously visually evident"
> phrase that is unnecessarily complex.
>
> Awk
>
>
> ---
> Andrew Kirkpatrick
>
> Adobe Systems
>
> = EMAIL ADDRESS REMOVED =
>
> 617.219.2209
>
> -----Original Message-----
> From: Gregg Vanderheiden [mailto: = EMAIL ADDRESS REMOVED = ]
> Sent: Sunday, August 19, 2007 06:30 AM Pacific Standard Time
> To: 'TEITAC Web/Software Subcommittee'
> Subject: [teitac-websoftware] Color
>
> Was looking to harmonize WCAG with TEITAC but I think new WCAG
> proposal might be better
>
>
>
>
>
>
> WCAG proposal
>
>
> Any information
> <http://www.w3.org/WAI/GL/WCAG20/#informationbycolordef>
> that is conveyed by difference in color is also simultaneously
> visually evident without the color difference.
>
>
>
>
> TEITAC language
>
>
> Color must not be used as the only visual means of conveying
> information, indicating an action, prompting a response, or
> distinguishing a visual element.
>
>
>
> Disadvantages of TEITAC
>
> 1) longer
>
> 2) uses list of things (which is always dangerous in
> provision --
> though useful in a note)
>
> 3) If I use blue text to convey information - it should
> not trigger
> this (if the blue has no meaning). However this language in past
> WCAGs has caused people to believe that they could not convey
> information in color (rather than by color).
>
>
>
>
> 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
>
> DSS Player at http://tinyurl.com/dho6b
>
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>
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>
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