- From: Sailesh Panchang <spanchang02@yahoo.com>
- Date: Thu, 22 Oct 2015 07:11:59 -0700
- To: w3c-wai-gl@w3.org
-------------------------------------------- On Wed, 10/7/15, Sailesh Panchang <spanchang02@yahoo.com> wrote: Subject: Clarifying concept of extension To: public-comments-wcag20@w3.org Date: Wednesday, October 7, 2015, 1:43 PM 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 (or providing accessibility guidance) 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 Thursday, 22 October 2015 14:12:35 UTC