Definition
Indicates that the resource does not contain any accessibility features.
Examples
Example 1 — EPUB 3
<meta property="schema:accessibilityFeature">
none
</meta>
Example 2 — EPUB 2
<meta name="schema:accessibilityFeature"
content="none"/>
Example 3 — Audiobooks
"accessibilityFeature": ["none"]
Explanation
The none
value
is used to indicate that a publication does not include any accessibility features.
This value exists so that there is no ambiguity about whether a publication does not contain any accessibility features or whether it was never checked for them.
ONIX Mapping
The none
value maps to list 196
code 09 ("Inaccessible, or known limited
accessibility").
Related Links
- Schema.org — accessibilityFeature
- Schema.org Accessibility Vocabulary — none