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RE: CFC - Responses to issues 657, 677, and 685 on text spacing

From: EA Draffan <ead@ecs.soton.ac.uk>
Date: Mon, 15 Jan 2018 20:45:02 +0000
To: Laura Carlson <laura.lee.carlson@gmail.com>, "White, Jason J" <jjwhite@ets.org>
CC: Makoto Ueki <makoto.ueki@gmail.com>, Andrew Kirkpatrick <akirkpat@adobe.com>, WCAG <w3c-wai-gl@w3.org>
Message-ID: <7181A95B72F5B04C94BEF10CEC91E7969DAD22AD@SRV00047.soton.ac.uk>
There are research studies about reading skills and Japanese word spacing - how it helps in some instances and hinders in others due to the different way the 'alphabets' are used http://www.sciencedirect.com/science/article/pii/S0042698907002556

The paper offers a comparison with Roman script. In Chinese the same paper mentions that " Liu, Yeh, Wang, and Chang (1974) found that adding spaces did not increase reading speed"

Whichever way one looks at it the amount of text spacing or lack of spacing should be considered in a different way to Roman script and the same could be said for cursive scripts such as Arabic  and other Semitic languages where "not all letters connect, word boundary location becomes an interesting problem, as spacing may separate not only words but also certain characters within a word." http://www.sciencedirect.com/science/article/pii/S0167865507001110

We know that is not just the font that affects reading but also letter, word and line spacing when it comes to reading difficulties such as dyslexia. http://onlinelibrary.wiley.com/doi/10.1002/dys.1527/abstract;jsessionid=05EAC01A23C6222730B122EA2DC876B1.f03t02

Slattery, T. J., Yates, M., & Angele, B. (2016). Interword and interletter spacing effects during reading revisited: Interactions with word and font characteristics. Journal of Experimental Psychology: Applied, 22(4), 406. Available at http://eprints.bournemouth.ac.uk  "inter-word space needs to be at least 3.5 times the inter-letter spacing for
reading to proceed efficiently."

Hope this helps
Best wishes

Mrs E.A. Draffan
WAIS, ECS , University of Southampton
Mobile +44 (0)7976 289103
UK AAATE rep http://www.aaate.net/<https://www.outlook.soton.ac.uk/owa/redir.aspx?C=WUwOCw_4FszLSzcUbkoFdDkad8-Q_GrRfPYUJ_ol5l2ebx78I2DUCA..&URL=http%3a%2f%2fwww.aaate.net%2f>

From: Laura Carlson [mailto:laura.lee.carlson@gmail.com]
Sent: 15 January 2018 13:47
To: White, Jason J <jjwhite@ets.org>
Cc: Makoto Ueki <makoto.ueki@gmail.com>; Andrew Kirkpatrick <akirkpat@adobe.com>; WCAG <w3c-wai-gl@w3.org>
Subject: RE: CFC - Responses to issues 657, 677, and 685 on text spacing

Hi Andrew, Jason, and all,

If it is okay to proceed with having little to no research specific to text spacing and CJK languages, I am happy if we use Andrew's reply.

If it is not okay, perhaps we could go with something like the exemption version that I previously drafted:

Kindest Regards,

On Jan 15, 2018 7:00 AM, "White, Jason J" <jjwhite@ets.org<mailto:jjwhite@ets.org>> wrote:
The response does not meet the need for the internationalization concerns to be properly considered, reviewed and addressed before entering CR.

-----Original Message-----
From: Makoto UEKI - Infoaxia, Inc. [mailto:makoto.ueki@gmail.com<mailto:makoto.ueki@gmail.com>]
Sent: Monday, January 15, 2018 7:39 AM
To: Andrew Kirkpatrick <akirkpat@adobe.com<mailto:akirkpat@adobe.com>>
Cc: WCAG <w3c-wai-gl@w3.org<mailto:w3c-wai-gl@w3.org>>
Subject: Re: CFC - Responses to issues 657, 677, and 685 on text spacing

-1 for now.

I'm not sure if the Exception addressed especially #657 for the vertical text mode as line/paragraph/letter spacing can be used.

Can we say that 1.5 times for line spacing, 2 times for paragraph spacing, and 0.12 times for letter spacing are valid for text written in vertical mode?

Another question I still have is whether these values are valid for text written in CJK and Arabic or not (Do we have basis?).

I'm looking for the research-based basis for these questions, but I haven't found them yet.

- Makoto

2018-01-15 13:25 GMT+09:00 Andrew Kirkpatrick <akirkpat@adobe.com<mailto:akirkpat@adobe.com>>:
> Call For Consensus — ends Tuesday January 16th at 11:59pm Boston time.
> The Working Group has discussed responses to the following issues:
> 657: When vertical text mode, are SC 1.4.8/1.4.12 applicable as they are?
> (https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgith

> ub.com<http://ub.com>%2Fw3c%2Fwcag21%2Fissues%2F657&data=02%7C01%7Cjjwhite%40ets.org<http://40ets.org>%
> 7Cdd585b66067046b7d79d08d55c1516f8%7C0ba6e9b760b34fae92f37e6ddd9e9b65%
> 7C0%7C0%7C636516168014168288&sdata=pRIF8b0gPi9i8SdkWacV8xAzVwt7h%2FNL%
> 2BTCySf%2BIoUc%3D&reserved=0)
> 677: Letter/Word spacing for CJK languages - SC 1.4.12 Text Spacing
> (https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgith

> ub.com<http://ub.com>%2Fw3c%2Fwcag21%2Fissues%2F677&data=02%7C01%7Cjjwhite%40ets.org<http://40ets.org>%
> 7Cdd585b66067046b7d79d08d55c1516f8%7C0ba6e9b760b34fae92f37e6ddd9e9b65%
> 7C0%7C0%7C636516168014168288&sdata=TFCViVWYCSmnMEuSTLhAPFJGEY7j0p17GCy
> z2vQEuxE%3D&reserved=0)
> 685: Internationalization implications of 1.4.12
> (https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgith

> ub.com<http://ub.com>%2Fw3c%2Fwcag21%2Fissues%2F685&data=02%7C01%7Cjjwhite%40ets.org<http://40ets.org>%
> 7Cdd585b66067046b7d79d08d55c1516f8%7C0ba6e9b760b34fae92f37e6ddd9e9b65%
> 7C0%7C0%7C636516168014168288&sdata=mjtPIkAZh8jtU0EQsOMob7tQAl43RNYlKMQ
> 8ykp6Mnc%3D&reserved=0)
> Response to Issue 657/677/685:
> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.w

> 3.org<http://3.org>%2FWAI%2FGL%2Fwiki%2FDraft_Responses_to_Dec_WD_Issues%23657_and_6
> 77_and_685&data=02%7C01%7Cjjwhite%40ets.org<http://40ets.org>%7Cdd585b66067046b7d79d08d5
> 5c1516f8%7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0%7C0%7C6365161680141682
> 88&sdata=A5LWdUAqrRnauiAMj43LRnxSyd9QiNZ0AmwY2tOBrP4%3D&reserved=0
> The changes to the SC are implemented in this pull request:
> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithu

> b.com<http://b.com>%2Fw3c%2Fwcag21%2Fpull%2F729&data=02%7C01%7Cjjwhite%40ets.org<http://40ets.org>%7Cd
> d585b66067046b7d79d08d55c1516f8%7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0
> %7C0%7C636516168014168288&sdata=Pe0a9A4URCC%2FxRTL3U21ix6jw3h7wJnd0K5b
> FheZ2to%3D&reserved=0
> The changed SC can be viewed here:
> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Frawgit

> .com%2Fw3c%2Fwcag21%2Fissue657%2Fguidelines%2Findex.html%23text-spacin
> g&data=02%7C01%7Cjjwhite%40ets.org<http://40ets.org>%7Cdd585b66067046b7d79d08d55c1516f8%
> 7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0%7C0%7C636516168014168288&sdata=
> tk1MZ3kmfcVEXTpMsbf8NEzxr61aXC6trCiz3N8h35M%3D&reserved=0
> 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,
> Andrew Kirkpatrick
> Group Product Manager, Accessibility
> Adobe
> akirkpat@adobe.com<mailto:akirkpat@adobe.com>
> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Ftwitte

> r.com<http://r.com>%2Fawkawk&data=02%7C01%7Cjjwhite%40ets.org<http://40ets.org>%7Cdd585b66067046b7d79d
> 08d55c1516f8%7C0ba6e9b760b34fae92f37e6ddd9e9b65%7C0%7C0%7C636516168014
> 168288&sdata=Wi6xHRInLyAok6fAKpsBAWZ9vCr61aQt1QgMJAkVQgQ%3D&reserved=0


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Received on Monday, 15 January 2018 20:45:36 UTC

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