RE: CFC - Changes to Target Size for Issue 631

Here is what I would propose:

The size of the target for pointer inputs is at least 44 by 44 CSS pixels or is at least 26 by 26 CSS pixels with 8 CSS  pixels spacing between targets except when:

Equivalent - The target is available through an equivalent link or control on the same page that is at least 44 by 44 CSS pixels;
Inline- The target is in a sentence or block of text;
User Agent Control - The size of the target is determined by the user agent and is not modified by the author.
Essential- A particular presentation of the target is essential to the information being conveyed;


This is based on the Microsoft research that the MATF looked at.  I am travelling so I can't pull up the study paper.

-----Original Message-----
From: Detlev Fischer (TK) [mailto:detlev.fischer@testkreis.de] 
Sent: Thursday, January 11, 2018 7:55 AM
To: w3c-wai-gl@w3.org
Subject: Re: CFC - Changes to Target Size for Issue 631

Hi Kathy,

can you make a quick draft for this?

I guess the problem is that it might be too late for another draft. And we still have the issue of lists of links, in dropdown menus and the like - we would need to have a number what spacing (or target height) we would consider sufficient, and might end up where we were (44x22). Or am I missing something?

Detlev

Am 11.01.2018 um 04:30 schrieb Kathy Wahlbin:
>
> -1  As mentioned on previous call, changing the SC to single dimension 
> is not meeting the needs of the end user.
>
> What if we went back to 44x44 CSS pixels and added an additional 
> exception that the minimum target size does not need to be met if 
> there is sufficient spacing between targets.  That would help users 
> with tremors and other mobility challenges to be more successful in 
> hitting the target area while allowing designers to have smaller 
> target regions.
>
> So the designer would have two options – meet the minimum requirements 
> for target size (keeping the current exceptions) or having a smaller 
> target size but making sure that targets have minimum spacing between 
> them.
>
> *From:*Andrew Kirkpatrick [mailto:akirkpat@adobe.com]
> *Sent:* Wednesday, January 10, 2018 1:55 PM
> *To:* WCAG <w3c-wai-gl@w3.org>
> *Subject:* CFC - Changes to Target Size for Issue 631
> *Importance:* High
>
> Call For Consensus — ends January 12 at 1:45pm Boston time.
>
> The Working Group has discussed a change to the Target Size SC in 
> response to issue 631 (https://github.com/w3c/wcag21/issues/631) and 
> discussion. This was discussed on the call
> (https://www.w3.org/2018/01/10-ag-minutes.html#item06)
> <https://www.w3.org/2018/01/10-ag-minutes.html#item06%29>.
>
> The specific changes are detailed in this pull request: 
> https://github.com/w3c/wcag21/pull/678 (see implemented at
> http://rawgit.com/w3c/wcag21/Issue631/guidelines/index.html#target-siz

> e)
>
> 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.
>
> Thanks,
>
> AWK
>
> Andrew Kirkpatrick
>
> Group Product Manager, Accessibility
>
> Adobe
>
> akirkpat@adobe.com <mailto:akirkpat@adobe.com>
>
> http://twitter.com/awkawk

> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Ftwitt

> er.com%2Fawkawk&data=02%7C01%7C%7C54093524ef264326424008d51cd66c05%7Cf
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--
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Detlev Fischer PhD
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Received on Thursday, 11 January 2018 13:19:33 UTC