Explanation

A tactile access mode indicates that a publication contains content perceived through touch, such as braille-formatted text, tactile images, and tactile objects. It is expressed in metadata using the tactile value.

The tactile value is typically not applicable to publications outside of accessible republishing.

Although digital publications will not contain physical tactile objects, if a publication provides links to such items (e.g., for download and printing on a 3d printer), you should set the tactile value.

Do not use the tactile value to indicate that text content can be converted to tactile form (e.g., using a refreshable braille display). A fully textual access mode, or a sufficient access mode of textual, indicates that content can be converted to braille or read aloud using text-to-speech synthesizers.

Examples

Example 1 — EPUB 3
<meta property="schema:accessMode">tactile</meta>
Example 2 — EPUB 2
<meta name="schema:accessMode" content="tactile"/>
Example 3 — Audiobooks
"accessMode": ["auditory", "tactile"]

ONIX Mapping

The tactile value maps to list 21 code BRL for a braille edition or list 175 code E146 for a BRF (braille ready format) file.

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