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Re: Discussion on SC numbering

From: Andrew Kirkpatrick <akirkpat@adobe.com>
Date: Wed, 21 Dec 2016 19:11:36 +0000
To: James Nurthen <james.nurthen@oracle.com>, "w3c-wai-gl@w3.org" <w3c-wai-gl@w3.org>
Message-ID: <07C2305D-93E5-4F01-98AB-FA190BF773AA@adobe.com>
If we are going to do any renumbering, we need to make sure that we know what we would do if we were to have a WCAG 2.2 or else we will just be in the same situation again (possibly also true for Silver)

Andrew Kirkpatrick
Group Product Manager, Standards and Accessibility


From: James Nurthen <james.nurthen@oracle.com<mailto:james.nurthen@oracle.com>>
Organization: Oracle Corporation
Date: Wednesday, December 21, 2016 at 12:58
To: WCAG <w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>>
Subject: Re: Discussion on SC numbering
Resent-From: WCAG <w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>>
Resent-Date: Wednesday, December 21, 2016 at 12:59

If we are going to have different numbers in 2.0 vs 2.1 for the same success criteria I would very much favour the 2.1 scheme being something completely different.

For example instead of 1,2,3 and 4 for Perceivable, Operable, Understandable and robust how about using letters (or something else)

So, for the example below, 1.4.7 in WCAG 2.0 would be P4.8 in WCAG 2.1. That way there would be no doubts about which version we were referring to, just from the success criteria "number" alone.



On 12/21/2016 9:30 AM, Laura Carlson wrote:

Hi Alastair,

Laura wrote:

Move IDs to the end of each SC

Thanks, I also have difficulty remembering the numbers. Well, past 1.1.1
anyway!  The 20/21 thing stumped me for a second, but I can see that having
the dot separator (2.1) would make it too ‘dotty’.

Yes. Too many dots is confusing.

Having “ID: 1.4.4(20)” and “ID: 1.4(21)4” implies the 2.1 is replacing the
previous, but in which case why have both?

Good point. I was thinking it would be forward compatible to 2.2 if
that was ever needed. But I think you solved it with your next

Perhaps it could be something like “ID 2.0: 1.4.7”, “ID 2.1: 1.4.8“.

Yes. That could work.

Overall though, I do like the idea of de-emphasising the IDs, it makes the
ordering more flexible. It becomes an enhancement for experts, toolmakers
and legal use, without confusing the largest group who (should) use the

Agreed. De-emphasising the numbers was my main point.

Kindest Regards,

Regards, James

James Nurthen | Principal Engineer, Accessibility
Phone: +1 650 506 6781<tel:+1%20650%20506%206781> | Mobile: +1 415 987 1918<tel:+1%20415%20987%201918> | Video: james.nurthen@oracle.com<sip:james.nurthen@oracle.com>
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Received on Wednesday, 21 December 2016 19:12:15 UTC

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