IMPORTANT Notes The Notes section contains important information

IMPORTANT: Notes The Notes section contains important information. Make sure you can read the Notes. On this slide, the notes start with “[NOTES SECTION: …” See www. w 3. org/WAI/@@ for tips, instructions, and permission to use. . . Copyright © 2007 W 3 C® (MIT, ERCIM, Keio)

WCAG 2. 0 Web Content Accessibility Guidelines Update DRAFT Last Updated 25 August 2007 Note: This document contains unapproved draft ideas and should not be referenced or quoted under any circumstances.

Talk about today 1. What is WCAG 2. What WCAG 2 gives you - International, cooperatively developed standard Applies to more advanced technologies Clearer criteria Flexible, adaptable Practical implementation examples and info 3. Making accessibility easier & better - Authoring tools and browsers 4. What you can do now

We won’t cover § The basics of Web accessibility and WCAG 1. 0 § The business case § Policies, laws, § … and such Will provide resources for these.

WCAG = Web Content Accessibility Guidelines § Applies to Web pages, sites, applications § For: • Web developers and designers, • Authoring tool and evaluation tool developers, and • Others who need a technical standard. • (not for novices)

What WCAG 2 gives you § International, cooperatively developed Web standard

Who develops WCAG § The standards-making body for the Web § International, multi-stakeholder development § Formal process for broad community review

How WCAG is developed, Stage 1 WCAG Working Group development WCAG 2. 0 Working Draft Community|Public review and comment

Improvements through revisions For example, clearer with less jargon § 2006 Draft: 4. 1. 1 Web units or authored components can be parsed unambiguously, and the relationships in the resulting data structure also unambiguous. § 2007 draft: 4. 1. 1 Parsing: Content implemented using markup languages has elements with complete start and end tags, except as allowed by their specifications, and are nested according to their specifications.

Improvements through revisions § Note new and improved documents: • WCAG 2 FAQ • WCAG 2. 0 Quick Reference • Summary of Issues, Revisions, and Rationales for Changes to WCAG 2. 0 2006 Last Call Draft

When will WCAG 2. 0 be completed?

Milestones § Working Drafts § Last Call Working Draft

Milestones § Public Working Drafts § Last Call Working Draft § Candidate Recommendation • Implementations § Proposed Recommendation § W 3 C Recommendation = Web Standard

Milestones § How WAI Develops Accessibility Guidelines through the W 3 C Process: Milestones and Opportunities to Contribute

What WCAG 2 gives you § WCAG 1. 0 --> WCAG 2. 0

WCAG 1. 0 WCAG 2. 0 WD § Principles § Guidelines

WCAG 1. 0 WCAG 2. 0 WD § Guidelines § Principles: POUR 1. Perceivable 2. Operable 3. Understandable 4. Robust § Guidelines

What WCAG 2 gives you § Easier to understand success, that is: more precisely testable (still need human)

WCAG 1. 0 WCAG 2. 0 WD § Principles: P-O-U-R § Guidelines • Checkpoints • Success Criteria Priority 1, 2, 3 Level A, AAA

Testable Example § WCAG 1. 0 Checkpoint • 2. 2 Ensure that foreground and background color combinations provide sufficient contrast when viewed by someone having color deficits…

Screenshot

Testable Example § WCAG 1. 0 Checkpoint • 2. 2 Ensure that foreground and background color combinations provide sufficient contrast when viewed by someone having color deficits… § WCAG 2. 0 Success Criteria • Text (and images of text) have a contrast ratio of at least 5: 1… (from the May 2007 Draft)

What WCAG 2 gives you § Applies to more advanced Web technologies - current, future, non-W 3 C § Adaptable, flexible for different situations, and developing technologies and techniques

WCAG 2. 0 Document § www. w 3. org/TR/WCAG 20/ § Formal Web standard draft, planned to become a “W 3 C Recommendation” § “Normative”

Techniques document § “Informative” supporting document § Examples for HTML, CSS, etc. § Can be updated

WCAG 2. 0 requirements are more flexible

More design flexibility § WCAG 1. 0 Checkpoint 7. 1: Until user agents allow users to control flickering, avoid causing the screen to flicker WCAG 2. 0 allows more movement within defined parameters § Bypass Blocks: A mechanism is available to bypass blocks of content that are repeated on multiple Web pages

Scripting allowed!

Scripting Techniques § Providing client-side validation and alert § Using functions of the Document Object Model (DOM) to add content to a page § Using Dynamic Web Content Accessibility to programmatically identify form fields as required §. . .

Flexibility for rich Internet applications § WAI-ARIA: Accessible Rich Internet Applications Suite § Techniques for meeting WCAG 2. 0 § E. g. , accessible and highly usable expanding and collapsing menus/tree controls/nav bars

WAI-ARIA status § Implementations already in browser and screen reader § Documents 1. Technical material for tool and specification developers 2. Best practices for Web content developers

Flexibility through “Accessibility Supported Technologies” (formerly “Baseline”)

Accessibility Supported § Technologies that: • users' assistive technologies support • the accessibility features in users’ browsers and other user agents support § “Technologies” here is web content technologies, e. g. , HTML, CSS, …

Changes over time § 1. 5 Until user agents render text equivalents for client-side image map links, provide redundant text links for each active region of a client-side image map. § 10. 4 Until user agents handle empty controls correctly, include default, place-holding characters in edit boxes and text areas. § 10. 5 Until user agents (including assistive technologies) render adjacent links distinctly, include non-link, printable characters (surrounded by spaces) between adjacent links.

Flexibility for different situations Situation A Situation B

Flexibility for different situations Situation A: Internet for all

Flexibility for different situations Situation A: Internet for all Situation B: Internal for employees

Accessibility Supported

Accessibility Supported § An established list of Web technologies that an author can use to create accessible Web content

Accessibility Supported § An established list of Web technologies that an author can use to create accessible Web content § Can use technologies outside of baseline, if content is usable without • That is, used for enhancement

What WCAG 2 gives you § Extensive supporting materials, - practical implementation guidance

WCAG 1. 0 WCAG 2. 0 WD § Principles: P-O-U-R § Guidelines • Checkpoints Priority 1, 2, 3 § Guidelines • Success Criteria Level A, AAA 1. 0 Support 2. 0 Support § Techniques + § Understanding

Understanding document § “Informative” supporting document § Reference manual

WCAG 2. 0 technical documents Understanding WCAG 2. 0 Techniques

WCAG 2. 0 Quick Reference ! Quick Reference

Quick Reference content Quick Reference § Guidelines § Success Criteria §Technique titles WCAG 2. 0 Techniques

Quick Reference links Understanding Quick Reference § Guidelines § Success Criteria §Technique titles WCAG 2. 0 Techniques

Success Criteria

Intro and discussion documents Overview WCAG 2 FAQ Issues, Changes

What WCAG 2 gives you § International, cooperatively developed standard § Applies to more advanced Web technologies - current, future, non-W 3 C § Adaptable, flexible for different situations, and developing technologies and techniques § More precisely testable § Extensive supporting materials, - practical implementation guidance

Accessibility ≠ WCAG = people using Web § WAI Resources • How People with Disabilities Use the Web • Involving Users in Web Accessibility [Design and] Evaluation § Videos §…

Achieving Web accessibility § Understanding accessibility issues and how people with disabilities use your site § Using WCAG 2. 0 §…

Who is responsible for Web accessibility?

Components of Web Accessibility Web Content (WCAG)

Components of Web Accessibility Web Content (WCAG) User Agent (UAAG)

Components of Web Accessibility Web Content (WCAG) Authoring Tool (ATAG) User Agent (UAAG)

Making accessibility easier for site developers and better for users!

Actively encourage accessibility improvements in tools Action ! http: //flickr. com/photos/ming 2046/5749434/

What else you can do now Action !

Get into WCAG 2. 0 Drafts

START HERE with WCAG 2. 0 Learning about it Using it Overview Quick Reference www. w 3. org/WAI/ intro/wcag 20. php www. w 3. org/WAI/ WCAG 20/quickref/

Talked about today 1. What is WCAG 2. What WCAG 2 gives you - International, cooperatively developed standard Applies to more advanced technologies Clearer criteria Flexible, adaptable Practical implementation examples and info 3. Making accessibility easier & better - Authoring tools and browsers 4. What you can do now

Questions? § WCAG 2 FAQ www. w 3. org/WAI/WCAG 20/wcag 2 faq § WAI Interest Group mailing list archive: lists. w 3. org/Archives/Public/w 3 c-wai-ig/ subscribe: www. w 3. org/WAI/IG/Overview. html#Uselist

Actively encourage real accessibility Reward web sites, tools, developers, … Thank you!

§ W 3 C WAI www. w 3. org/WAI/ § Introduction to Web Accessibility www. w 3. org/WAI/intro/accessibility § Understanding Web Accessibility[? ? non-W 3 C ok? ] www. uiaccess. com/understanding. html § Developing a Web Accessibility Business Case for Your Organization www. w 3. org/WAI/bcase/Overview § How WAI Develops Accessibility Guidelines through the W 3 C Process www. w 3. org/WAI/intro/w 3 c-process § WAI Resources www. w 3. org/WAI/Resources/Overview

§ Overview of WCAG 2. 0 Documents www. w 3. org/WAI/intro/wcag 20 § WCAG 2 FAQ www. w 3. org/WAI/WCAG 20/wcag 2 faq § WCAG 2. 0 Quick Reference www. w 3. org/WAI/WCAG 20/quickref/ § Summary of Issues, Revisions, and Rationales for Changes to WCAG 2. 0 2006 Last Call Draft www. w 3. org/WAI/GL/2007/05/change-summary § WAI-ARIA Suite Overview www. w 3. org/WAI/intro/aria

Reference WCAG 2. 0 Web Content Accessibility Guidelines Update, S. L. Henry, et al. , ed. , World Wide Web Consortium (MIT, ERCIM, Keio), September 2007. http: //www. w 3. org/@@

END graveyard of other ideas follows

WCAG 2. 0 technical documents Understanding WCAG 2. 0 Introduction Principles Guidelines Success Criteria Conformance Glossary … Techniques

WCAG 2. 0 Quick Reference ! Quick Reference

WCAG 2. 0 Quick Reference ! WCAG 2. 0 Introduction Principles Guidelines Success Criteria Conformance Glossary … Quick Reference § Guidelines § Success Criteria §Technique titles Techniques

WCAG 2. 0 Quick Reference ! Understanding WCAG 2. 0 Introduction Principles Guidelines Success Criteria Conformance Glossary … Quick Reference § Guidelines § Success Criteria §Technique titles Techniques