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Accessibility Standards from the Inside Out
Madeleine RothbergNational Center for Accessible Media at WGBH
June 16, 2016
So many standards!
Web standards from W3C: WCAG, HTML, ARIA W3C DPUB Note and ARIA DPUB roles EPUB for Education EPUB Accessibility: Conformance and Discovery
Requirements for EPUB Publications Schema.org and ONIX metadata
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What is a digital book?
Words, images, widgets...
Arranged with structure
Wrapped in a book formatSold or offered from an online catalog
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Standards guide accessibility in every layer 4
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Words etc. in accessible HTML with ARIA
Arranged with structure using ARIA DPUB roles
Wrapped in a book format using EPUB a11y standard
Offered in an online catalog using Schema.org and ONIX metadata
Words etc. in accessible HTML with ARIA
Arranged with structure using ARIA DPUB roles
Wrapped in a book format using ePUB a11y standard
Offered in an online catalog using Schema.org and ONIX metadata
Not quite so neat 5
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W3C Accessibility Standards
HTML5 Web Content Accessibility Guidelines 2.0
—Start with “Web Content Accessibility Guidelines (WCAG) Overview”
—Perceivable, Operable, Understandable and Robust—Success criteria—Specific techniques and code samples
(HTML, CSS, PDF, ARIA, Flash, other technologies) User Agent Accessibility Guidelines 2.0
—Ebook readers are user agents Authoring Tools Accessibility Guidelines 2.0
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ARIA and DPUB
Accessible Rich Internet Applications 1.0 and soon 1.1—adds accessibility semantics to a host language, i.e.
HTML or EPUB—always use native HTML or EPUB when that has
semantics— layer on ARIA, but not too much
Digital Publishing Working Group (DPUB) documents in progress—Note offers overview and use cases—ARIA module offers roles, states and
properties specific to the digital publishing industry
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EPUB Standards
EPUB 3.1 in progress—3.0 added accessibility support—3.1 new accessibility features
Metadata, audio formats
EPUB for Education (formerly EduPUB):profile of EPUB with rich educational semantics
EPUB Accessibility: Conformance and Discovery Requirements for EPUB PublicationsEditor's Draft 26 April 2016 – Please comment—Requirements doc—Techniques doc
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Accessibility Metadata
ONIX—extensive accessibility features list—Code List 196
Schema.org and a11ymetadata.org—accessibility features, hazards, control, API—work in progress:
access mode, access mode sufficient, accessibility summary, braille details
Work in progress: harmonize ONIX and Schema.org accessibility metadata
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Accessibility Metadata in HTML 11
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Resources for HTML and ARIAWeb Accessibility Initiative:https://www.w3.org/WAI/
WCAG Overview:https://www.w3.org/WAI/intro/wcag.php
ARIA 1.1W3C Working Draft 17 March 2016https://www.w3.org/TR/wai-aria-1.1/
Digital Publishing and Accessibility in W3C Documents:W3C Interest Group Note 03 May 2016https://www.w3.org/TR/dpub-accessibility/
Digital Publishing WAI-ARIA Module 1.0:W3C Working Draft 17 March 2016https://www.w3.org/TR/dpub-aria-1.0/
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Resources for EPUB
EPUB for Education :Draft Specification 22 February 2016 http://www.idpf.org/epub/profiles/edu/spec/
EPUB AccessibilityConformance and Discovery Requirements for EPUB Publications:Editor's Draft 26 April 2016http://www.idpf.org/epub/a11y/accessibility.html
EPUB Accessibility Techniques:Editor's Draft 26 April 2016http://www.idpf.org/epub/a11y/techniques.html
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Resources for Accessibility MetadataONIX:Download the specification and all code lists
http://www.editeur.org/93/Release-3.0-Downloads/#Specification
Accessibility Metadata:Specification, examples, crosswalk, and more
http://www.a11ymetadata.org/
Schema.org Metadata Integration Guide for EPUB 3:Advice on integrating schema.org metadata in the EPUB® package documentBy Matt Garrish, Michael Jay, and Madeleine Rothberg
http://www.idpf.org/epub/guides/schema-org-integration/
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Questions
Madeleine RothbergNational Center for Accessible Media at WGBH
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© 2016 WGBH