Re: Comment on use of the word "essential" in exception for 1.4.11

No matter how we slice it, graphics color contrast is complex.  And I
believe we do need this exception and the word "essential" is required for
accuracy in that exception.

I think this proposal of wording for the exception is solid:


   - *Essential Graphical Presentation Exception* - A particular
   presentation of the graphical is essential to the information being
   conveyed and cannot be achieved in another way that would conform.


And I deeply believe that this phrase is very important and not just
fluff.  It is very, very important stuff.

"is essential to the information being conveyed and cannot be achieved in
another way that would conform."

In fact...that is the exact wording needed to make you think...okay...I've
got this graphic.  It is essential for understanding.  Now...at the moment
it does not meet color contrast.  Is there any way on this planet that I
can bring it into compliance?  If the answer is yes, guess what?  You've
got to make it compliant.

We can give examples of things that are normally part of this exception..in
the understanding document.

This exception is not a loophole because of the phrase "is essential to the
information being conveyed and cannot be achieved in another way that would
conform."

(Goodwitch steps down from her graphics contrast soapbox!)
g

glenda sims  |   team a11y lead   |    deque.com    |    512.963.3773
*web for everyone. web on everything.* -  w3 goals

[image: IAAP International Association of Accessibility Professionals:
Certified Professional in Accessibility Core Competencies (CPACC)]
<http://www.accessibilityassociation.org/certification>

On Wed, Sep 20, 2017 at 6:36 PM, Repsher, Stephen J <
stephen.j.repsher@boeing.com> wrote:

> Yep, I get the difference between the 2 uses, but I think the exception
> should call out those types of things rather than create an “essential”
> umbrella.  Photos and colors of real life is an obvious example (which I
> thought was the point of the sensory exception – if not, seems easy to
> incorporate).
>
>
>
> Steve
>
>
>
> *From:* Alastair Campbell [mailto:acampbell@nomensa.com]
> *Sent:* Wednesday, September 20, 2017 6:25 PM
> *To:* Repsher, Stephen J <stephen.j.repsher@boeing.com>; Glenda Sims <
> glenda.sims@deque.com>; public-low-vision-a11y-tf <
> public-low-vision-a11y-tf@w3.org>
>
> *Subject:* RE: Comment on use of the word "essential" in exception for
> 1.4.11
>
>
>
> Hi Stephen,
>
>
>
> If it helps separate the first use of “essential” from the second, the
> phrase “graphical objects that are essential for understanding” is intended
> to separate parts of graphics that are needed to discern the meaning, from
> those which are not.
>
>
>
> Without that concept (however it is phrased), the SC becomes impossible to
> meet and very difficult to test.
>
>
>
> The comment that lead to the last exception was regarding graphics used in
> learning material (and exams) for doctors, where pictures of people’s, um,
> insides are the way they have to be in life, you can’t just up the contrast
> on them.
>
>
>
> That doesn’t seem to fit the ‘sensory’ exception, but does seem to need
> some way of being exempted.
>
>
>
> Cheers,
>
>
>
> -Alastair
>
>
>
>
>
> *From:* Repsher, Stephen J [mailto:stephen.j.repsher@boeing.com
> <stephen.j.repsher@boeing.com>]
> *Sent:* 20 September 2017 22:44
> *To:* Alastair Campbell <acampbell@nomensa.com>; Glenda Sims <
> glenda.sims@deque.com>; public-low-vision-a11y-tf <
> public-low-vision-a11y-tf@w3.org>
> *Subject:* RE: Comment on use of the word "essential" in exception for
> 1.4.11
>
>
>
> I actually agree with the commenter in terms of the hole it opens, and
> would prefer we delete the “essential” exception in favor of listing
> specific things that should be exempt.  As Alastair said, it was added
> fairly late and I’m not sure a convincing argument was made for it to be
> worded as such or even be there.  (For example, logos are considered
> “essential in all other SC, so we wouldn’t need to repeat that).
>
>
>
> If we absolutely must keep it in terms of “essential”, then we can clear
> it up by talking directly about color contrast as it relates to meaning and
> leave the rest out: “The contrast of the graphical object is essential for
> meaning.”.  Talking about presentation and information is fluff copied from
> other SC.
>
>
>
> Note that copying from other SC also means editorial tweaks are needed for
> sensory and logos to talk about “graphical objects” instead of non-text
> content and graphics, respectively.
>
>
>
> Steve
>
>
>
> *From:* Alastair Campbell [mailto:acampbell@nomensa.com
> <acampbell@nomensa.com>]
> *Sent:* Wednesday, September 20, 2017 5:16 PM
> *To:* Glenda Sims <glenda.sims@deque.com>; public-low-vision-a11y-tf <
> public-low-vision-a11y-tf@w3.org>
> *Subject:* RE: Comment on use of the word "essential" in exception for
> 1.4.11
>
>
>
> Hi Glenda,
>
>
>
> Sure, that exception was added relatively late in the process, and looking
> at it now, we shouldn’t use ‘essential’ in the main SC and again in the
> exception without explaining that better.
>
>
>
> Your suggestion looks good to me, let’s use that unless someone else has
> an improvement…
>
>
>
> Cheers,
>
>
>
> -Alastair
>
>
>
> *From:* Glenda Sims [mailto:glenda.sims@deque.com <glenda.sims@deque.com>]
>
> *Sent:* 20 September 2017 18:33
> *To:* public-low-vision-a11y-tf <public-low-vision-a11y-tf@w3.org>
> *Subject:* Comment on use of the word "essential" in exception for 1.4.11
>
>
>
> Hey Alastair,
>
>
>
> I volunteered to work on a WCAG 2.1 comment/issue in github.  Specifically
> this one:  Andrew Kirkpatrick entered an issue in github based on a post
> made by Scott Hollier (concerns about the loophole of "essential").  You
> can see the issue here https://github.com/w3c/wcag21/issues/150
>
>
>
> I've been chatting with Scott Hollier about his confusion and ideas for
> improving the understandability of 1.4.11 Graphics Contrast.
>
>
>
> Scott raised the following point:  The SC refers to "essential" but then
> turns around and has 'Essential" as an exception.  This double use of the
> word "essential" is confusing and at first may seem contradictory (to a
> newbie trying to understand it).  Scott worried that the "Essential"
> exception would become a GIANT loophole...that would allow all graphics to
> be exempt from the graphic contrast requirement.
> Success Criterion 1.4.11 Graphics Contrast
>
> The visual presentation of graphical objects that are essential for
> understanding the content or functionality have a contrast ratio
> <https://www.w3.org/TR/WCAG21/#dfn-contrast-ratio> of at least 4.5:1
> against the adjacent color(s), except for the following:
>
> *Thicker* - For graphical objects with a minimum width and height of at
> least 3 CSS pixels, the graphic has a contrast ratio of at least 3:1;
>
> *Sensory* - Non-text content that is primarily intended to create a
> visual sensory experience has no contrast requirement;
>
> *Logotypes* - Graphics that are part of a logo or brand name have no
> minimum contrast requirement;
>
> *Essential* - A particular presentation of the graphical is essential to
> the information being conveyed.
>
> Based on Scott's questions/comments....I have a suggestion for you to
> consider.  Would it be worthwhile (make it more understandable) to change
> the wording of the Essential exception from:
>
> ·       *Essential:* A particular presentation of the graphical is
> essential to the information being conveyed.
>
> to:
>
> ·       *Essential Graphical Presentation Exception* - A particular
> presentation of the graphical is essential to the information being
> conveyed and cannot be achieved in another way that would conform.
>
>
>
> Or something along those lines?Just a thought,G
>
> glenda sims  |   team a11y lead   |    deque.com    |    512.963.3773
> <(512)%20963-3773>
> *web for everyone. web on everything.* -  w3 goals
>
>
>
> [image: Image removed by sender. IAAP International Association of
> Accessibility Professionals: Certified Professional in Accessibility Core
> Competencies (CPACC)]
> <http://www.accessibilityassociation.org/certification>
>