Status of this Document

This document is subject to change at any time. The terms defined herein will never be removed, but may be deprecated.

Any use of terms marked [draft] should be considered experimental.

Deprecated term are identified by the label [deprecated]. These terms are no longer recommended for use.

Requests for additions, modifications and clarifications can be made through the Issue Tracker. Pull requests are also welcome.

Refer to the IDPF Issue Reporting Guidelines for more information about the change request process.

1 Overview

1.1 About this Vocabulary

This section is informative

This vocabulary defines properties for describing the accessibility of EPUB Publications in the Package Document metadata.

This vocabulary is a companion to the EPUB Accessibility specification and is intended to be read in conjunction with that document.

1.2 Referencing

The base IRI for referencing this vocabulary is http://www.idpf.org/epub/vocab/package/a11y/#.

The prefix "a11y:" is reserved for use with properties in this vocabulary and does not have to be declared in the Package Document.

1.3 Terminology

Terms with meanings specific to EPUB are capitalized in this document (e.g., "Author", "Reading System"). See the EPUB Accessibility specification for their meanings.

Only the first instance of a term in a section is linked to its definition.

2 Conformance Properties

2.1 certifiedBy

Name:	certifiedBy
Description:	Identifies a party responsible for the testing and certification of the accessibility of an EPUB Publication.
Allowed value(s):	`xsd:string`
Cardinality:	`One or more`
Example:	`<meta property="a11y:certifiedBy">Accessibility Testers Group</meta>`

2.2 certifierCredential

Name:	certifierCredential
Description:	Identifies a credential or badge that establishes the authority of the party identified in the `certifiedBy` property to certify content accessible.
Allowed value(s):	`xsd:string`
Cardinality:	`Zero or more`
Example:	`<meta property="a11y:certifierCredential">DAISY OK</meta>`

2.3 certifierReport

Name:	certifierReport
Description:	Provides a link to an accessibility report created by the party identified in the `certifiedBy` property.
Allowed value(s):	`xsd:anyURI`
Cardinality:	`Zero or more`
Example:	`<link rel="a11y:certifierReport" href="http://example.com/a11y/reports/9780000000001"/>`