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Re: Accessibility of QR code Scanning in web pages

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From: Steve Green
Date: Oct 8, 2018 8:31PM


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


-----Original Message-----
From: WebAIM-Forum < <EMAIL REMOVED> > On Behalf Of Ryan E. Benson
Sent: 08 October 2018 23:32
To: WebAIM Discussion List < <EMAIL REMOVED> >
Subject: Re: [WebAIM] Accessibility of QR code Scanning in web pages

A similar experience with people who have mobility or dexterity problems.
Holding a device at the right position for a few seconds feels like an eternity.

Ryan E. Benson

On Mon, Oct 8, 2018, 15:21 Andre Polykanine < <EMAIL REMOVED> > wrote:

> Hello Ramakrishnan,
> As a blind user and accessibility specialist, I can tell you about the
> great challenge for blind and low vision users: positioning of
> the smartphone in front of the screen of the PC.
> As an example, let's take WhatsApp and their Windows client. It is
> basically their website wrapped into a binary file, and to
> authorize on your PC, you have to place your phone in front of your
> screen to scan the QR code. And it's really a pain, because even a
> sighted person is helping you with the thing, it's like: "lower... a
> bit higher... a bit to the right... no no no, lower and a bit to the
> left!" - I hope, you got it.
> So if you design an app that requires a user to scan a QR code from
> his/her cell phone, I guess you need to also design some kind of a
> mobile app that would guide the user about where the QR code is, if
> it's possible for you.
> Hope this helps.
>
> --
> With best regards from Ukraine,
> Andre
> Skype: menelion_elensule
> Twitter (English only): @AndrePolykanine
>
>
> ------------ Original message ------------
> From: Ramakrishnan Subramanian < <EMAIL REMOVED> >
> To: <EMAIL REMOVED>
> Date created: , 3:18:53 AM
> Subject: [WebAIM] Accessibility of QR code Scanning in web pages
>
>
> Dear members,
> I would like to know your thoughts on accessibility of QR code
> scanning used in web pages for different modality. These days we have
> been seeing QR code Scan being used in web sites for Multi-factor
> authentication (MFA) and some other scenarios. I would like to know
> your thoughts on the Accessibility of QR code Scanning in web pages
> for different modality.
> Is it considered accessible? Or, is there any accessibility challenges
> for users with different modality?
> Is there any guidance available for evaluating accessibility of QR
> code Scanning in web pages?
>
> Thanks
> Ram
>
>
> --
>
> Thanks and Regards
> Ramakrishnan
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