Re: Measurability in Silver

I think most WCAG evaluators would not include  transient states that last
a split second on inline links unless there was some added value.

On Tue, Nov 6, 2018 at 12:36 PM Hall, Charles (DET-MRM) <
Charles.Hall@mrm-mccann.com> wrote:

> Following up on today’s conversation.
>
>
>
> RE: Testing as Pass/Fail versus Measurability
>
>
>
> All (or at least most) of the feedback, comments, and opposition to a
> “measurable” approach seem to suggest or imply that measurable means a
> scale – for example, a score of 1–5.
>
>
>
> Some thoughts based on a specific example:
>
>
>
> Success Criterion 1.4.1 Use of Color (Level A)
>
> Color is not used *as the only visual means* of conveying information,
> indicating an action, prompting a response, or distinguishing a visual
> element.
>
>
>
> Technique
>
> Situation A: If the color of particular words, backgrounds, or other
> content is used to indicate information:
>
> G205: Including a text cue for colored form control labels
>
> Test
>
> For any content where color differences are used to convey information:
>
> Check that the same information is available through text or character
> cues.
>
>
>
> Interpretation
>
> “…text or character cues” here is intended to describe the “visual means”
> as defined in the SC. So there is a simple pass / fail test that “the same
> information” [as color] is visible.
>
>
>
> Hypothetical scenario
>
> Element is a link. The information and indication of action is “this text
> is a link”. It is blue text within a line of black text that is not a link.
> It is not underlined. Links are stateful. There is only 1 of 5 states where
> there is no second explicit visual means. In the default state, there is
> color alone. In the focus, active, hover and visited states there are
> additional visual affordances as well as the user agent providing a pointer
> cursor where there is a pointing input device. There is even a selected
> state, and a pseudo after element that includes content of an icon that
> conveys the link is external.
>
>
>
> So, “same information is available through text or character cues” is true
> in 4 states, but not true in 1. Does this fail? Under WCAG 1.4.1, it does.
> Under Silver, there may be other options. As a scale (as suggested at the
> beginning), this could earn a 4 of 5. However, that then requires an
> enumerated mark such as ‘3 or higher’ to qualify as passing. There is
> another option. What if the test question was “do people understand from
> any visual cues that this text is a link?” Then that question was answered
> by test participants that included 60 people with a wide spectrum of visual
> abilities and color deficiencies. If the result was 49 of 60 said “yes”,
> and 8 of 60 said “yes, if” or “yes, when” and 3 said “no”, there is clearly
> a new grey area or middle ground beyond simply scoring on a scale. The
> qualitative result is that it passed, while the quantitative result is that
> it scored high enough to pass if the enumerated mark or threshold was 51%. *Can
> the qualitative result be accepted as a measurable “pass”?*
>
>
>
> Cheers,
>
>
>
>
>
> *Charles Hall* // Senior UX Architect
>
>
>
> charles.hall@mrm-mccann.com
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