INDUSTRIAL STANDARD OF WEB CONTENT ACCESSIBILITY
GUIDELINES AND INTERNATIONAL STANDARD HARMONIZATION
Takayuki Watanabe
Tokyo Woman's Christian University
2-6-1 Zenpukuzi
Suginami-ku 167-8585 Japan
Day Phone: +81-3-5382-6524
Email: nabe@lab.twcu.ac.jp
Presenter #2
Syuji Morii
INSTAC, Japanese Standards Association
Akasaka 81 BLDG, 8F
2-13-5 Nagata-cho, Chiyoda-ku
Tokyo 100-0014 JAPAN
Day Phone: +81-335-921408
Fax: +81-335-921414
Email: morii@jsa.or.jp
Presenter #3
Hazime Yamada
Tokyo University
Department of Economics
5-28-20 Hakusan
Bunkyo
+81-339-457411
+81-339-457667
Email: yamada_h@toyonet.toyo.ac.jp
We present Japanese activities of JIS X
8341-3, Web Content Guidelines for older persons and persons with disabilities,
in terms of national outreach and international standard harmonization.
1. Introduction
As presented in CSUN 2004 [CSUN2004] and 2005 [CSUN2005], JIS X 8341-3
(Guidelines for older persons and persons with disabilities -Information and
communications equipment, software and services- Part 3: Web content) was
published in June 2004. After the publication of JIS X 8341-3, Web
Accessibility International Standards Research Working Group (WG2) was organized
at INSTAC (Information Technology Research and
2. National promotion of JIS X 8341-3
In order to promote JIS X 8341-3, WG2 prepared techniques handbook working
draft [JIS-Tech], which is open to the public on the Web. This handbook
explains specific requirements of JIS X 8341-3 in terms of (X)HTML and CSS
techniques.
3. International standard harmonization
3.1 Japanese translation of WCAG 2.0
In order to harmonize Web Content Accessibility Guidelines, two members of
WG2 participates in WCAG Working Group of W3C/WAI. WG2 translated June 30
Working Draft of WCAG 2.0 [WCAG2.0WD] and some Techniques documents for WCAG
2.0, which is open to the public on the Web [WCAG2.0WD Japanese translation].
3.2 Comparison between JIS X 8341-3 and WCAG 2.0 Working Draft
In order to examine the differences between JIS X 8341-3:2004 and the
current WCAG 2.0 Working Draft, WG2 compared specific requirements of JIS X
8341-3 and success criteria of WCAG 2.0 Working Draft.
We found the following success criteria are not covered by JIS X 8341-3:
1) GL 1.2 Level 3 SC 1: Sign language interpretation is provided for
multimedia.
2) GL 2.4 Level 2 SC 1: More than one way is available to locate content
within a set of delivery units.
3) GL 2.4 Level 3 SC 1: When a page or other delivery unit is navigated
sequentially, elements receive focus in an order that follows relationships and
sequences in the content.
4) GL 2.5 Level 3 SC 1: Additional context-relevant assistance is available
for text input.
5) GL 3.2 Level 2 SC 3: Changing the setting of any input field does not
automatically cause a change of context.
6) GL 4.1 Level 1 SC 1: SGML-based delivery units are well-formed.
7) GL 4.2 Level 1 SC 2: Content using baseline technologies or non-baseline
technologies, must meet the following criteria:
1. Content that violates international health and safety
standards for general flash or red flash is marked in a way that the user can
avoid its appearance
2. If the user can enter the content using the keyboard, then
the user can exit the content using the keyboard.
8) GL 4.2 Level 1 SC 3: The role, state, and value can be programmatically
determined for every user interface component of the web content that accepts
input from the user or changes dynamically in response to user input or
external events.
9) GL 4.2 Level 1 SC 5: The states and values of content that can be
changed via the user interface can also be changed programmatically.
10) GL 4.2 Level 1 SC 6: Changes to content, structure, selection, focus,
attributes, values, state, and relationships within the content can be
programmatically determined.
11) GL 4.2 Level 3 SC 1: Content implemented using technologies outside of
baseline follows all WCAG requirements supported by the technology.
Some success criteria are too difficult to understand their meaning and
intentions.
We also found the following requirements are not covered by WCAG 2.0 Working
Draft:
1) 5.5 b) Information required to understand and operate Web content shall
not rely on shape and location alone.
2) Clause 6. General requirements for assurance and improvement of
information accessibility
WG2 will discuss these differences with WCAG WG in order to promote
international standard harmonization.
References
[CSUN2004] "JIS Web Content Accessibility Guideline"
http://www.comm.twcu.ac.jp/~nabe/data/JIS-WAI/
[CSUN2005] "Japanese Industrial Standard of Web Content Accessibility
Guidelines and International Standard Harmonization"
http://www.comm.twcu.ac.jp/~nabe/data/CSUN2005/
[JIS-Tech] "Techniques handbook on JIS X 8341-3:2004" Working
Draft
http://www.jsa.or.jp/domestic/instac/commitee-acc/web-tech-repo/index.htm
(in Japanese)
[WCAG2.0WD] Web Content Accessibility Guidelines 2.0 (W3C Working Draft 30
June 2005)
http://www.w3.org/TR/2004/WD-WCAG20-20050630/
[WCAG2.0WD Japanese translation]
http://www.jsa.or.jp/domestic/instac/W3C-WCAG/index.html
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