- From: Shawn Lauriat <lauriat@google.com>
- Date: Fri, 1 Feb 2019 15:52:41 -0500
- To: Silver TF <public-silver@w3.org>
- Message-ID: <CAGQw2hnnOP0jsTredr7qPNzNaf5KXVRrpTzaf3AkEvNQzWXq3g@mail.gmail.com>
Continuing the trending evidence that I do horribly with minutes when running a call, I've added a quick recap of the conversation and our main talking points, as we had a really great talk through some hard areas today (please correct me and fill in important points that I missed!): - Requirements: We ran through several of the opportunities noted in our Silver Requirements draft <https://w3c.github.io/silver/requirements/index.html>, and it seems that the Usability opportunities <https://w3c.github.io/silver/requirements/index.html#oppotunities_usability> have general consensus from all, though the implementation details, likely less so. We don't need that for Requirements consensus, though, I/we don't think. - Once we got to Conformance Model opportunities <https://w3c.github.io/silver/requirements/index.html#oppotunities_conformance>, we clearly have aspects that we need to clarify and work through, as we didn't get past Measurable Guidance. This has a few aspects of it to work out, though: - Clarify that rather than replacing pass/fail statements, (new draft of the last bit): "Multiple means of measurement, in addition to pass/fail statements, allow inclusion of more accessibility guidance." - We had a solid conversation around WCAG 2.0 AA mapping to bronze. Attempting to recap: - WCAG 2.0 AA should map to bronze, so that we can have bronze contain the pass/fail requirements and then silver and gold can include the more subjective requirements. This supports the legal requirement for talking about requirements in court. - Courts don't judge pass/fail statements, they handle the unclear cases where it takes judgement on evidence to make a call as to the outcome. - Things don't go to court because they fail a particular test, they generally do so because someone can't use or access something. - WCAG 2.0/1 AA includes many subjective requirements, such as Non-text Content <https://www.w3.org/TR/WCAG21/#non-text-content>: "All non-text content that is presented to the user has a text alternative *that serves the equivalent purpose*…" [emphasis mine]. Should we move the subjective aspects from bronze to silver, which would move WCAG AA equivalence to silver? (no) - We talked through an example framework of how to test conformance with Non-text Content, which guides the tester through interpreting the content-author's intention for the use of an image to judge whether the text alternative serves something resembling equivalent purpose. - We can use similar measurability to other guidance, using frameworks that guide the tester (meaning person doing the activity of testing, rather than a person with that job title) through the process of determining how well or not a given thing conforms with guidance, with a line in the sand as to what means failure, without the guidance existing as strict pass/fail statements. This can enable us to include guidance serving people with disabilities whose needs WCAG can't currently include due to the need to express guidance in strict pass/fail statements. - This doesn't introduce any more subjectivity into accessibility guidelines and conformance than we have today, but tries to give a means to express the subjectivity and potential wishy-washiness of outcomes, for instance where an image has lousy (but not absurdly wrong) alt text or a video has captions with loads of errors in them. - Bringing the conversation back to the opportunity we describe in the Silver Requirements draft (including the suggested edit to the last sentence), how can we express this in a way that the overall Working Group will agree that Silver should include this as a desired aspect of Silver: "*Measurable Guidance*: Certain accessibility guidance is quite clear and measurable. Others, far less so. There are needs of people with disabilities, especially cognitive and low vision disabilities that are not well served by guidance that can only be measured by pass/fail statement. Multiple means of measurement allow inclusion of more accessibility guidance." Again, please correct me and fill in important points that I missed! I wrote that up from memory, a questionable idea to anyone who knows my memory. -Shawn Formatted minutes <https://www.w3.org/2019/02/01-silver-minutes.html> Plain text of minutes: [1]W3C [1] http://www.w3.org/ - DRAFT - Silver Community Group Teleconference 01 Feb 2019 Attendees Present johnkirkwood, Charles, LuisG, JF, KimD, jeanne, kirkwood, Cyborg, mikeCrabb, Shawn, Lauriat, AngelaAccessForAll, Makoto, JanMcSorley, Jennison Regrets Chair SV_MEETING_CHAIR Scribe johnkirkwood Contents * [2]Topics 1. [3]Refining the Requirements document * [4]Summary of Action Items * [5]Summary of Resolutions __________________________________________________________ Refining the Requirements document <Lauriat> Requirements draft: [6]https://w3c.github.io/silver/requirements/index.html [6] https://w3c.github.io/silver/requirements/index.html <Lauriat> Opportunity for clarification: Measurable Guidance: Certain accessibility guidance is quite clear and measurable. Others, far less so. There are needs of people with disabilities, especially cognitive and low vision disabilities that are not well served by guidance that can only be measured by pass/fail statement. Multiple means of measurement allow inclusion of more accessibility guidance. <Lauriat> Drafted rewrite of the last sentence: Multiple means of measurement, in addition to pass/fail statements, allow inclusion of more accessibility guidance. <Lauriat> JF: Achieving bronze could require meeting all of those pass/fail statements, essentially mapping to pass/fail. equivalent experience must be between the visual and non visual user in that case. Must get the same information. +1 to shawn +1 to KD Thats why we have a jury of peers these are very good points! intention. structure that JF went through could be very powerful not easily automated in a scalable testable manner? what if bronze vs silver vs gold is more about the extent/level of testing? this seems to be about the burden of testing <Lauriat> trackbot, end meeting Summary of Action Items Summary of Resolutions [End of minutes]
Received on Friday, 1 February 2019 20:53:19 UTC