RE: Tweak 2.5.3

Touch duration (dwell time) was a big factor seen in the study I attended a CSUN session on.

Jonathan

Jonathan Avila
Chief Accessibility Officer
SSB BART Group
jon.avila@ssbbartgroup.com<mailto:jon.avila@ssbbartgroup.com>
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From: ALAN SMITH [mailto:alands289@gmail.com]
Sent: Thursday, March 31, 2016 3:06 PM
To: Jonathan Avila; David MacDonald
Cc: public-mobile-a11y-tf@w3.org
Subject: RE: Tweak 2.5.3

Do we also need to consider touch duration?
I personally know of people with injuries and other finger sensitivity conditions that need a longer touch time to perform a touch trigger.

Alan

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From: Jonathan Avila<mailto:jon.avila@ssbbartgroup.com>
Sent: Thursday, March 31, 2016 2:04 PM
To: David MacDonald<mailto:david100@sympatico.ca>
Cc: public-mobile-a11y-tf@w3.org<mailto:public-mobile-a11y-tf@w3.org>
Subject: RE: Tweak 2.5.3

David, thank you for putting this together.  Since we are talking without ATs that remap the gestures I think it is confusing to talk about focus.  For example, when I touch an HTML button on iOS the events are touchstart, touchend and mouseover if I drop and lift my finger on the button.  If I drop then move my finger and then lift somewhere else they are touchstart, touchmove and then touchend.  Only controls like input would receive focus on mobile safari without AT.  When AT is running other interactive elements do receive focus.  Chris mentioned that some users would actually prefer to trigger based on touchstart since they might move their finger to the wrong place when lifting.    I really wish we could find some reliable research on this topic.

Jonathan

Jonathan Avila
Chief Accessibility Officer
SSB BART Group
jon.avila@ssbbartgroup.com<mailto:jon.avila@ssbbartgroup.com>
703.637.8957 (Office)
Visit us online: Website<http://www.ssbbartgroup.com/> | Twitter<https://twitter.com/SSBBARTGroup> | Facebook<https://www.facebook.com/ssbbartgroup> | Linkedin<https://www.linkedin.com/company/355266?trk=tyah> | Blog<http://www.ssbbartgroup.com/blog/>
Check out our Digital Accessibility Webinars!<http://www.ssbbartgroup.com/webinars/>

From: David MacDonald [mailto:david100@sympatico.ca]
Sent: Thursday, March 31, 2016 12:52 PM
To: Jonathan Avila
Cc: public-mobile-a11y-tf@w3.org<mailto:public-mobile-a11y-tf@w3.org>
Subject: Re: Tweak 2.5.3

In discussions during the call I took an action to make it clear that 2.5.3 is about the environment with AT is turned off.  I thought it would be best to just make it a trailing note after the SC.

===========================
2.5.3 Independent Activation: The activation gesture has one or more of the following characteristics (Level A):

  1.  is separate from the focus gesture,
  2.  provides confirmation,
  3.  is reversible,
  4.  a mechanism is available to activate functionality independently from focus.

This is when platform assistive technology that remaps touch gestures is not turned

===================
**OR:**

If we want to incorporate it into the text of the SC then it would look like this.
2.5.3 Independent Activation: When platform assistive technology that remaps touch gestures is off, the activation gesture has one or more of the following characteristics (Level A): ...
We use "When platform assistive technology that remaps touch gestures is turned on/off" twice now. This is the most accurate term we could come up with, but is a bit of a mouthful, do we dare create an acronym (PATRTG ??) which would be defined in its first appearance and in the glossary?

===Definition==
Platform assistive technology that remaps touch gestures (PATRTG): Software that is integrated into the operating system, ships with the product, and/or is updated or installed via system updates. This software changes the characteristics of the touch interface when turned on. (e.g., When turned on, a system screen reader may remap a right swipe gesture to move focus from item to item instead of it's default behaviour of changing screens, when the assistive technology is not on.


https://www.w3.org/WAI/GL/mobile-a11y-tf/wiki/Proposed_revision_of_2.5.3#Proposed_2.5.3


On Wed, Mar 23, 2016 at 4:02 PM, David MacDonald <david100@sympatico.ca<mailto:david100@sympatico.ca>> wrote:
I've updated it to "focus" instead of "selection"

We might also consider "on focus" but I'd like the group to mull that over before giving that nod to JavaScript.

On Fri, Mar 18, 2016 at 9:58 PM, David MacDonald <david100@sympatico.ca<mailto:david100@sympatico.ca>> wrote:
my interpretation is "focus"

On Fri, Mar 18, 2016 at 3:23 PM, Jonathan Avila <jon.avila@ssbbartgroup.com<mailto:jon.avila@ssbbartgroup.com>> wrote:
I apologize that I was not on the call on Thursday but I had an unexpected eye doctor appointment.   I have a question around 2.5.3 – what is meant by selection?  We use that twice and I’m not sure what we mean by that.

Thanks

Jonathan


From: David MacDonald [mailto:david100@sympatico.ca<mailto:david100@sympatico.ca>]
Sent: Thursday, March 17, 2016 12:22 PM
To: public-mobile-a11y-tf@w3.org<mailto:public-mobile-a11y-tf@w3.org>
Subject: Re: Tweak 2.5.3


Small tweak:

As per our meeting today, I tweaked 2.5.3

2.5.3 Independent Activation: The activation gesture has one or more of the following characteristics (Level A):

1) is separate from the selection gesture,

2) provides confirmation,

3) is easily reversible, or

4)a mechanism is available to activate functionality independently from

selection.
https://www.w3.org/WAI/GL/mobile-a11y-tf/wiki/Proposed_revision_of_2.5.3#Proposed_2.5.3


On Thu, Mar 17, 2016 at 12:18 PM, David MacDonald <david100@sympatico.ca<mailto:david100@sympatico.ca>> wrote:
As per our meeting today, I tweaked 2.5.3

2.5.3 Independent Activation: The selection gesture has one or more of the following characteristics (Level A):
1) is separate from the activation gesture,
2) provides confirmation,
3) is easily reversible, or
4)a mechanism is available to activate functionality independently from selection.

https://www.w3.org/WAI/GL/mobile-a11y-tf/wiki/Proposed_revision_of_2.5.3#Proposed_2.5.3