COGA special meeting tomorrow/Thursday: Rachael's WCAG 3 conformance explainer

Hi, COGA folks, there will be a special COGA meeting tomorrow/Thursday
about an important topic that COGA members need to understand and help
weigh in on. See below for key details, thanks.

*Background*

   - Earlier this week, on Monday's COGA task force call, we talked about
   the AG's proposed conformance model for WCAG 3 and what COGA can do to help
   ensure that cognitive requirements and assertions are sufficiently
   represented in the conformance model.
   - We looked at slide 7 in the AG's proposed conformance deck
   <https://docs.google.com/presentation/d/1DlDxp8MCYXj3RWnFCCz13zsmM2fV4Wf8NbECKogdul8/edit?slide=id.p#slide=id.p>,
   but that slide is now outdated.
   - Please see the section below for details about the new slides that the
   AG chairs added yesterday.

*Special COGA meeting: Thursday, October 23rd, at 10am ET*

   - Rachael, who is one of the AG co-chairs, will meet with COGA to
   explain the two conformance models that are being debated and to answer
   COGA's questions about them.
   - She will explain in detail:
      - Three potential sizes of mandatory provisions
      <https://docs.google.com/presentation/d/1DlDxp8MCYXj3RWnFCCz13zsmM2fV4Wf8NbECKogdul8/edit?slide=id.g39bba20ca27_0_0#slide=id.g39bba20ca27_0_0>
      (Slide 15)
      - Option 1: Prerequisites and Supplemental/Assertions
      <https://docs.google.com/presentation/d/1DlDxp8MCYXj3RWnFCCz13zsmM2fV4Wf8NbECKogdul8/edit?slide=id.g39b52ff6882_1_17#slide=id.g39b52ff6882_1_17>
      (Slides 16 and 17)
      - Option 2: Foundational and Supplemental/Assertions
      <https://docs.google.com/presentation/d/1DlDxp8MCYXj3RWnFCCz13zsmM2fV4Wf8NbECKogdul8/edit?slide=id.g39b52ff6882_1_12#slide=id.g39b52ff6882_1_12>
      (Slides 18 and 19)


*Conformance survey deadline: Thursday, October 27th, by end of day*

   - The AG chairs shared a conformance survey
   <https://www.w3.org/wbs/35422/conf_20_oct_25/?login=> at yesterday's AG
   meeting. It asks about Options 1 and 2.
   - Julie asked for more time to submit responses, but the AG chairs need
   to close the survey Monday night so the results can be discussed at
   Tuesday's AG meeting.
   - We scheduled a special meeting for tomorrow/Thursday so that COGA
   members will have time to process Rachael's explanation and make an
   informed decision on how to fill out the survey.
   - We encourage all COGA members to attend tomorrow's meeting with
   Rachael, and we'll do a quick recap at Monday's regular COGA task force
   meeting.

*Special COGA meeting day/time*

   - Thursday, October 23rd
   - 10 am ET
   - 3 pm UK Time
   - 5 pm Israel
   - 8:30 pm India

*Meeting url*

   - Go to the 23 October WCAG 3 conformance model options (Rachael
   explainer) event
   <https://www.w3.org/events/meetings/3eea0dad-8414-4517-8ea7-5279316c95f6/>
   in your W3C calendar.
   - Use the "Join the meeting" button.
   - Please let me know if you have any trouble joining.

*IRC access*

   - IRC is like our chat room: http://irc.w3.org/?channels=coga
   - The channel is #coga
   - You can write any name as a nickname.
   - *Tips for using IRC
   <https://www.w3.org/WAI/GL/task-forces/coga/wiki/IRC,_scribing_and_running_meeting>*


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Received on Wednesday, 22 October 2025 14:34:10 UTC