Re: Clarifying concept of extension

Sailesh just reminded me that I’m backwards in thinking that he was thinking backwards.  It would be correct to say that 5:1 is a “tougher” requirement than 4.5:1.  Thanks for setting me straight...

Thanks,
AWK

Andrew Kirkpatrick
Group Product Manager, Accessibility
Adobe 

akirkpat@adobe.com
http://twitter.com/awkawk

http://blogs.adobe.com/accessibility









On 10/7/15, 13:43, "Sailesh Panchang" <spanchang02@yahoo.com> wrote:

>With reference to  https://www.w3.org/WAI/GL/wiki/WCAG_Extensions_Framework

>1. Consider incorporating these statements right before the sentence beginning with ,"The underlying goal of each extension is...":
>
>A WCAG2 Eextension is a vehicle for defining accessibility requirements  over and above  what is contained in the normative part of WCAG 2.0; in other words an extension extends a certain  part of WCAG 2.0 without actually changing WCAG 2.0. 
>Once an extension becomes a W3C recommendation, authors may choose to make their Web content conform with this extension too in addition to the minimum conformance at the desired WCAG 2.0 level.
>
>2. With regard to, " Extension specifications are expected to offer modifications to existing WCAG 2.0 success criteria" 
>Clarify the above with an example like:
>Although SC 1.4.3 AA requires  a minimum ratio of 4.5 to 1, an extension requirement at Level AA may say the minimum is 5 to 1.
>Or, an extension may bump up  2.4.7 Level AA to Level A. 
>(These are mere examples to further the understanding of an extension's purpose).
>
>Just my thoughts.
>
>Regards,
>Sailesh Panchang
>
>
>

Received on Wednesday, 7 October 2015 22:17:13 UTC