ONIX Code Lists Issue 36, January 2017
List 196: E-publication Accessibility Details

Value Description Notes

01 LIA Compliance Scheme
02 Accessibility Specification 1.0 A Conforms with the requirements of EPUB Accessibility Spec 1.0 and WCAG level A. <ProductFormFeatureDescription> may carry a URL linking to a compliance report or certification provided by an independent third party certifier. In the absence of a URL, conformance with the requirements of the Accessibility Specification is self-certified by the publisher
03 Accessibility Specification 1.0 AA Conforms with the requirements of EPUB Accessibility Spec 1.0 and WCAG level AA. <ProductFormFeatureDescription> may carry a URL linking to a compliance report or certification provided by an independent third party certifier. In the absence of a URL, conformance with the requirements of the Accessibility Specification is self-certified by the publisher
10 No reading system accessibility options disabled (except) No accessibility features offered by the reading system, device or reading software (including but not limited to choice of text size or typeface, choice of text or background color, text-to-speech) are disabled, overridden or otherwise unusable with the product EXCEPT – in ONIX 3 messages only – those specifically noted as subject to restriction or prohibition in <EpubUsageConstraint>. Note that provision of any significant part of the textual content as images (ie as pictures of text, rather than as text) inevitably prevents use of these accessibility options
11 Table of contents navigation Table of contents allows direct (eg hyperlinked) access to all levels of text organization above individual paragraphs (eg to all sections and subsections) and to all tables, figures, illustrations etc. Non-textual items such as illustrations, tables, audio or video content may be directly accessible from the Table of contents, or from a similar List of illustrations, List of tables, etc
12 Index navigation Index provides direct (eg hyperlinked) access to uses of the index terms in the document body
13 Reading order All or substantially all textual matter is arranged in a single logical reading order (including text that is visually presented as separate from the main text flow, eg in boxouts, captions, tables, footnotes, endnotes, citations, etc). Non-textual content is also linked from within this logical reading order. (Purely decorative non-text content can be ignored)
14 Short alternative descriptions All or substantially all non-text content has short alternative descriptions, usually provided via alt attributes. Note this applies to normal images (eg photographs, charts and diagrams) and also to any embedded audio, video etc. Audio and video content should include alternative descriptions suitable for hearing-impaired as well as for visually-impaired readers. (Purely decorative non-text content can be ignored, but the accessibility of resources delivered via a network connection rather than as part of the e-publication package must be included)
15 Full alternative descriptions All or substantially all non-text content has full alternative descriptions. Note this applies to normal images (eg photographs, charts and diagrams) and also to any embedded audio, video etc. Audio and video content should include full alternative descriptions (eg audio-described video) and subtitles or closed captions suitable for hearing-impaired as well as for visually-impaired readers. (Purely decorative non-text content can be ignored, but the accessibility of resources delivered via a network connection rather than as part of the e-publication package must be included)
16 Visualised data also available as non-graphical data Where data visualisations are provided (eg graphs and charts), the underlying data is also available in non-graphical (usually tabular, textual) form
17 Accessible math content Mathematical content such as equations is usable with assistive technology, eg through use of MathML. Semantic MathML is preferred but Presentational MathML is acceptable
18 Accessible chem content Chemistry content such as chemical formulae is usable with assistive technology, eg through use of ChemML
19 Print-equivalent page numbering For a reflowable e-publication, contains references to the page numbering of an equivalent printed product
20 Synchronised pre-recorded audio Text-synchronised pre-recorded audio narration (natural or synthesised voice) is included for substantially all textual matter, including all alternative descriptions
21 Text-to-speech hinting provided Text-to-speech has been optimised through provision of PLS lexicons, SSML or CSS Speech synthesis hints
22 Language tagging provided The language of the text has been specified (eg via the HTML or XML lang attribute) to optimise text-to-speech (and other alternative renderings), both at whole document level and, where appropriate, for individual words, phrases or passages in a different language
24 Dyslexia readability Specialised font, character and line spacing, justification and paragraph spacing, colouring and other options provided specifically to improve readability for dyslexic readers. Details, including the name of the font, should be listed in <ProductFormFeatureDescription>
94 Compliance web page for detailed accessibility information <ProductFormFeatureDescription> carries the URL of a web page giving further detailed description of the accessibility features, compatibility, testing etc. The web page should be maintained by an independent compliance scheme or testing organization
95 Trusted intermediary’s web page for detailed accessibility information <ProductFormFeatureDescription> carries the URL of a web page giving further detailed description of the accessibility features, compatibility, testing etc. The web page should be provided by a trusted intermediary or third party nominated by the publisher
96 Publisher’s web page for detailed accessibility information <ProductFormFeatureDescription> carries the URL of a web page giving further detailed description of the accessibility features, compatibility, testing etc. The web page should be provided by the publisher
97 Compatibility tested <ProductFormFeatureDescription> carries a short description of compatibility testing carried out for this product, including detailed compatibility with various assistive technology such as third-party screen-reading software
98 Trusted Intermediary contact <ProductFormFeatureDescription> carries the e-mail address for a contact at a ‘trusted intermediary’, to whom detailed questions about accessibility for this product may be directed
99 Publisher contact for further accessibility information <ProductFormFeatureDescription> carries the e-mail address for a contact at the publisher to whom detailed questions about accessibility of this product may be directed