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Re: Accessibility of QR code Scanning in web pages

for

From: Wolfgang Berndorfer
Date: Oct 9, 2018 5:38AM

From a meta view, for me the question seems rather easily to answer, similar
to a lot of partially inaccessible features:

1. If the feature is helpful for some, it's allowed, perhaps even indicated.
Just compare the effort to access via keyboard input with a smart phone
interaction for those, who are fit for smart phone interaction.
2. Guarant an alternative access for those, who don't have the corresponding
device or app available. I qutoe Brandon: "If there is an alternative that
doesn't require the phone along with the QR code, I think you'll be fine."

Besides accessibility questions I'd be longing to know, how secure QR is for
two way authentication. I could imagine hacks to pretend a human being when
accessing a QR code. This could be a query to technicians in conception
times.

Wolfgang
-----Ursprüngliche Nachricht-----
Von: WebAIM-Forum [mailto: <EMAIL REMOVED> ] Im Auftrag
von Brandon Keith Biggs
Gesendet: Dienstag, 09. Oktober 2018 09:25
An: WebAIM Discussion List
Betreff: Re: [WebAIM] Accessibility of QR code Scanning in web pages

Hello,
I find QR codes extremely annoying, so that is one reason why I don't use
Whatsapp.
They are accessible if I can trust when I point my phone to the screen, I
get the QR code.
I have had dialogues warning me of updates block the QR code though and I
had no idea. Apparently some brilliant person thought it would be a good
idea to make dialogues that are always visible, but don't trap focus as
well, so I could have a dialogue telling me something that is blocking my
screen, but I would have no idea.
Other times QR codes would be a problem is when accessing the site on a
device without a screen. Most Braille notetakers don't have a screen.
Also accessing the site on a mobile device is a problem, because I don't
know how to point my phone's camera at it's own screen.
If users don't have their phone, or their phone is dead, or they don't have
Wi-Fi with their phone, they couldn't use the site.
If there is an alternative that doesn't require the phone along with the QR
code, I think you'll be fine.
Thanks,


Brandon Keith Biggs <http://brandonkeithbiggs.com/>;


On Mon, Oct 8, 2018 at 10:32 PM Srinivasu Chakravarthula <
<EMAIL REMOVED> > wrote:

> In some (or actually most) of the merchant places here in India, we use
> Paytm interestingly, as the app triggers the QR code, it sounds a beep. So
> that alerts us if we have scanned QR code.
>
> I think something like that should be implemented.
> Regards,
>
> Srinivasu Chakravarthula - Twitter: http://twitter.com/CSrinivasu/
> Website: http://www.srinivasu.org | http://serveominclusion.com
>
> Let's create an inclusive web!
>
> Lead Accessibility Consultant, Informatica
>
>
>
> On Tue, Oct 9, 2018 at 8:01 AM Steve Green < <EMAIL REMOVED>
> >
> wrote:
>
> > That just sounds like a bad QR code reading program. We are currently
> > doing functionality testing on an application that has a QR code reader
> and
> > I am always astounded how fast it reads the codes. You don't need to
keep
> > the phone still even for a fraction of a second. As soon as the QR code
> is
> > in view of the camera it gets read instantly - even before my eyes have
> > registered that it's fully within the viewfinder. The QR code only needs
> to
> > occupy a few percent of the viewfinder, so you can just wave the camera
> in
> > the general direction of the QR code and there is no need to worry about
> > centring it. It also works at an oblique angle so there is no need for
> the
> > camera to be parallel with the QR code.
> >
> > Steve Green
> > Managing Director
> > Test Partners Ltd
> >
> >
> >