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RE: CFC Add Device Sensors to Editors Draft

From: Kathy Wahlbin <kathy@interactiveaccessibility.com>
Date: Fri, 23 Jun 2017 19:01:20 +0000
To: "Alex Li (CELA)" <alli@microsoft.com>, John Foliot <john.foliot@deque.com>, WCAG <w3c-wai-gl@w3.org>
Message-ID: <AA2ADA4972B28E44BEA975C2E84D405946893B6B@ORD2MBX02G.mex05.mlsrvr.com>
Keyboard is not a device sensor

A device sensor is a device component that detects and responds to some type of input from the physical environment.  Examples on mobile devices are the measurement of motion, orientation, and various environmental conditions.

·       Motion sensors
These sensors measure acceleration forces and rotational forces along three axes. This category includes accelerometers, gravity sensors, gyroscopes, and rotational vector sensors.
·       Environmental sensors
These sensors measure various environmental parameters, such as ambient air temperature and pressure, illumination, and humidity. This category includes barometers, photometers, and thermometers.
·       Position sensors
These sensors measure the physical position of a device. This category includes orientation sensors and magnetometers.

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From: Alex Li (CELA) [mailto:alli@microsoft.com]
Sent: Friday, June 23, 2017 2:17 PM
To: John Foliot <john.foliot@deque.com>; WCAG <w3c-wai-gl@w3.org>
Subject: RE: CFC Add Device Sensors to Editors Draft

Are keyboards device sensors? If so, this SC seems to conflict with 2.1.1. If not, then what makes keyboards not device sensor?

From: John Foliot [mailto:john.foliot@deque.com]
Sent: Friday, June 23, 2017 6:05 AM
To: WCAG <w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>>
Subject: Re: CFC Add Device Sensors to Editors Draft

> DF: You may be right here - I would not be against discussing this again in one of the next telcos following your objection - what is the WG protocol in these cases?

In the absence of a specific protocol, I too agree that we may have been a bit hasty, and that further discussion is warranted here. Josh and Andrew, can this topic be re-added to the agenda for Tuesday 6/27? Steve has raised valid points which I believe warrant the additional review. Thanks!

> The same would be required should advanced web apps draw on fingerprint readers, face detection, voise detection etc (I have not seen any that do that but it seems feasible / likely to happen).

These are happening now: "OK Google", (Cortana, Siri, Alexa) for speech input that commences a more complex action (searching), and I now have multiple apps on my cell phone that allows for my thumb-print to "log-in". The future is now :-)


On Fri, Jun 23, 2017 at 7:00 AM, Shadi Abou-Zahra <shadi@w3.org<mailto:shadi@w3.org>> wrote:

On 20/06/2017 19:04, Joshue O Connor wrote:
Call For Consensus — ends FridayJune 23rd at 1:00pmBoston time.

The Working Group has reviewed and approved a Success Criterion for inclusion in the Editor’s Draft: "Device Sensors" with the goal of obtaining additional input external to the working group.

NOTE: The resolution  was to Accept this SC into editors draft and include a note to say that the preference of the group is to alter an existing SC rather than add a new one.


"All functionality of the content can be operated without requiring specific device sensor information unless the device sensor is essential for the function and not using it would invalidate the activity."

Survey results:

GIT Hub: https://github.com/w3c/wcag21/issues/67

The new SC can be reviewed here:

If you have concerns about this proposed consensus position that have not been discussed already and feel that those concerns result in you “not being able to live with” this decision, please let the group know before the CfC deadline.


Shadi Abou-Zahra - http://www.w3.org/People/shadi/

Accessibility Strategy and Technology Specialist
Web Accessibility Initiative (WAI)
World Wide Web Consortium (W3C)

John Foliot
Principal Accessibility Strategist
Deque Systems Inc.

Advancing the mission of digital accessibility and inclusion
Received on Friday, 23 June 2017 19:01:50 UTC

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