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Re: Vibrating phone on invalid input entry

for

From: John Foliot
Date: Oct 8, 2016 8:04AM

Hi All,

Good discussion. While right now this is discussing what I presume is a
native app on iOS, the W3C is currently working on a Vibration API (Second
Edition) (https://w3c.github.io/vibration/) so that web developers could
recreate this feature in their web-apps, and the question did come up about
accessibility considerations for this at the APA (
https://www.w3.org/WAI/APA/).

As others have noted, there really isn't a direct WCAG Success Criteria
today that addresses (with any specificity) this scenario, and it is likely
a good candidate for the current effort underway on WCAG 2.1. Having only
one mode of either input, or here output, has long been a principle that
we've recognized as being inaccessible, and so while we may not have a
specific WCAG SC to point to (as Rakesh notes), I would suggest that it
would likely be covered under the Principle of Perceivable, and so if
nothing else it is failing the spirit of WCAG, even if we don't have a
specific Success Criteria to point to.

JF

On Sat, Oct 8, 2016 at 2:08 AM, Maxability Accessibility for all <
<EMAIL REMOVED> > wrote:

> Hi Nawaz,
>
> I don't think vibration of the phone is an identifiable error pattern for
> screen reader users. Having it the only notification will harm them.
>
>
> On Fri, Oct 7, 2016 at 2:52 PM, Maraikayar Prem Nawaz < <EMAIL REMOVED> >
> wrote:
>
> > Thank you team.
> >
> > Had an argument with the developer, where the developer said, "May be the
> > screen reader user already know that this an error, and this is an well
> > recognized error pattern".
> > Yes vibration was the only way to indicate error.
> >
> > I didn't think about this scenario "for people who have a tablet mounted
> on
> > a stand and can't therefore feel the vibration". Thanks Patrick :-)
> >
> > Regards
> > -Nawaz
> >
> >
> > On Thu, Oct 6, 2016 at 7:14 PM, JP Jamous < <EMAIL REMOVED> > wrote:
> >
> > > I guess at that point your phone doesn't feel like talking to you. LOL
> > >
> > >
> > > Just kidding.
> > >
> > > -----Original Message-----
> > > From: WebAIM-Forum [mailto: <EMAIL REMOVED> ] On
> > > Behalf Of Birkir R. Gunnarsson
> > > Sent: Thursday, October 6, 2016 8:31 AM
> > > To: WebAIM Discussion List < <EMAIL REMOVED> >
> > > Subject: Re: [WebAIM] Vibrating phone on invalid input entry
> > >
> > > I have experienced tis on iOS 10 when myfingerprint rader does not
> detect
> > > my thumb correctly.
> > > I just get a vibration not a "try again" message.
> > > Usually I get both, but there are definite instances where I only got
> the
> > > vibration.
> > >
> > >
> > > On 10/6/16, JP Jamous < <EMAIL REMOVED> > wrote:
> > > > 1. What is the app? I ask because I experienced it with Youtube app.
> > > > However, voiceover did speak immediately the reason why the vibration
> > > > took place.
> > > > 2. Ensure that this is not a setting inside the app itself. Different
> > > > apps can set their own ways of alerting the user.
> > > > 3. If you are using iOS 10, keep in mind that it still has lots of
> > > > bugs as far as accessibility. I have no idea how the heck they
> > > > released it when aria-describedby and labeledby were not working in
> > > Safari.
> > > >
> > > > -----Original Message-----
> > > > From: WebAIM-Forum [mailto: <EMAIL REMOVED> ] On
> > > > Behalf Of Maraikayar Prem Nawaz
> > > > Sent: Thursday, October 6, 2016 3:15 AM
> > > > To: WebAIM Discussion List < <EMAIL REMOVED> >
> > > > Subject: [WebAIM] Vibrating phone on invalid input entry
> > > >
> > > > Folks,
> > > > Discovered a error pattern on one of the apps for iPhone where phone
> > > > would shake on invalid input while nothing is announced by voiceover.
> > > >
> > > > Is this is a correct pattern for invalid input.
> > > >
> > > > Read a similar thing in this blog
> > > > http://babich.biz/how-to-use-animation-to-improve-ux/ ..
> > > >
> > > > Thanks
> > > > -Nawaz
> > > > > > > > > > > > archives at http://webaim.org/discussion/archives
> > > > > > > >
> > > > > > > > > > > > archives at http://webaim.org/discussion/archives
> > > > > > > >
> > >
> > >
> > > --
> > > Work hard. Have fun. Make history.
> > > > > > > archives
> > > at http://webaim.org/discussion/archives
> > > > > >
> > > > > > > > > > > > > > >
> > > > > > > > > >
> > > > >



--
John Foliot
Principal Accessibility Strategist
Deque Systems Inc.
<EMAIL REMOVED>

Advancing the mission of digital accessibility and inclusion