Seemally identify appendices (glossaries, indexes, bibliographies, etc. and integrate them to the navigation repeats (landmarks) is essential to allow quick access and effective exploitation by assistive technologies.

Objectives

• Guarantee intuitive and quick navigation to key appendices (glossary, index, bibliography).
• Strengthen semantic accessibility and information discovery for all readers, including those using assistive technologies.
• Improve the overall usability of the digital work by allowing efficient access to definitions and references.

Implementation

• In the nav.xhtml file, create a specific navigation section for landmarks using the <nav> tag with the epub:type landmarks attribute. Inside this <nav> tag, list the links to the different key sections of your book. Each link (<a>) must have an epub:type attribute which identifies the semantic nature of the section it points to. The relevant epub:types for this rule are glossary, index, bibliography
• Alongside these epub:type in the navigation, and to reinforce semantics and accessibility, the HTML element which contains the glossary, index or bibliography (inleurs fichiers XHTML respectifs) doit également se voir attribuer le rôle ARIA DPub correspondant, soit doc-glossary, doc-index, doc-bibliography
• It is also possible to provide a mechanism such as a tooltipallowing the user to access the definition of technical or sectoral vocabulary terms, from at least their first occurrence in each portion of the book.

Control

• If a glossary, lexicon, bibliography or index exists, then check for the presence of corresponding reference points in the navigation panel of a reading system.
• The presence of ARIA roles can be verified in the ACE report, by checking the code, or by testing with assistive technology that renders this information.