This document crosswalks the accessibility metadata for Schema.org, EPUB, and ONIX.
The following table provides a crosswalk between the properties defined in the EPUB Accessibility specification [[EPUB-A11Y-11]] and the equivalents defined in the ONIX metadata standard [[ONIX]].
The conformsTo term used in EPUB is drawn from Dublin
Core.
| EPUB | ONIX |
|---|---|
| certifiedBy | – |
| certifierReport | List: 196; Code: 94: Compliance web page for detailed accessibility information or, if a publisher is self-certifying, Code: 96: Publisher's web page for detailed accessibility information |
| certifierCredential | – |
dcterms:conformsTo with the URL
http://www.idpf.org/epub/a11y/accessibility-20170105.html#wcag-a
|
List: 196; Code: 02: EPUB Accessibility Specification 1.0 A |
dcterms:conformsTo with the URL
http://www.idpf.org/epub/a11y/accessibility-20170105.html#wcag-aa
|
List: 196; Code: 03: EPUB Accessibility Specification 1.0 AA |
The following table provides a crosswalk between the Schema.org metadata and ONIX standard [[ONIX]].
| Schema.org | ONIX |
|---|---|
| accessibilityFeature (vocabulary list follows) | List 196 (specific codes follow) |
| alternativeText | List: 196; Code: 14: Short alternative descriptions |
| annotations | – |
| audioDescription | – |
| bookmarks | N/A (Reading system feature) |
| braille | – |
| captions | – |
| ChemML | List: 196; Code: 18: Accessible chem content |
| describedMath | – |
| displayTransformability | – |
| highContrastAudio | – |
| highContrastDisplay | – |
| index | List: 196; Code: 12: Index navigation |
| largePrint | – |
| latex | – |
| longDescription | List: 196; Code: 15: Full alternative descriptions; 16: Visualised data also available as non-graphical data |
| MathML | List: 196; Code: 17: Accessible math content |
| none | – |
| printPageNumbers | List: 196; Code: 19: Print-equivalent page numbering |
| readingOrder | List: 196; Code: 13: Reading order |
| rubyAnnotations | – |
| signLanguage | – |
| structuralNavigation | – |
| sychronizedAudioText | List: 196; Code: 20: Synchronised pre-recorded audio |
| tableOfContents | List: 196; Code: 11: Table of contents navigation |
| taggedPDF | – |
| tactileGraphic | – |
| tactileObject | – |
| timingControl | – |
| transcript | – |
| ttsMarkup | List: 196; Code: 21: Text-to-speech hinting provided; 22: Language tagging provided |
| unlocked | – |
| – | List: 196; Code 22: Language tagging provided – helps with TTS in multi-lingual content |
| – | List: 196; Code 24: Dyslexia readability |
| – | List: 196; Code 09: Inaccessible |
| – | List: 196; Code 10: No reading system accessibility options disabled |
| accessibilityHazard (vocabulary list follows) | – |
| flashing | – |
| noFlashingHazard | – |
| motionSimulation | – |
| noMotionSimulationHazard | – |
| sound | – |
| noSoundHazard | – |
| unknown | – |
| accessibilityAPI (vocabulary list follows) | – |
| AndroidAccessibility | – |
| ARIA | – |
| ATK | – |
| AT-SPI | – |
| BlackberryAccessibility | – |
| iAccessible2 | – |
| iOSAccessibility | – |
| JavaAccessibility | – |
| MacOSXAccessibility | – |
| MSAA | – |
| UIAutomation | – |
| accessibilityControl (vocabulary list follows) | – |
| fullKeyboardControl | – |
| fullMouseControl | – |
| fullSwitchControl | – |
| fullTouchControl | – |
| fullVideoControl | – |
| fullVoiceControl | – |
| accessMode (vocabulary list follows) | – |
| auditory | – |
| chartOnVisual | List: 81; Code 19: Figures, Diagrams, Charts |
| chemOnVisual | – |
| colorDependent | – |
| diagramOnVisual | List: 81; Code 19: Figures, Diagrams, Charts |
| mathOnVisual | – |
| musicOnVisual | – |
| tactile | – |
| textOnVisual | – |
| textual | List: 81; Code: 10 combined with List: 196; Code: 10 means all text is actual text. Note that List: 81; Code: 10 on its own (without List: 196; Code: 10) admits the possibility that the "text" is inaccessible because it is an image of text. |
| visual | List: 81; Code: 07: Still images / graphics or Code: 18: Photographs or Code: 19: Figures, diagrams, charts, graphs or Code: 12: Maps and/or other cartographic content |
| accessModeSufficient (vocabulary list follows) | ONIX crosswalks are for instances where accessModeSufficient includes this vocabulary entry alone; combinations may occur but are more difficult to crosswalk |
| auditory | List: 81; Code:01 |
| tactile | – |
| textual | List: 81; Code: 10 combined with List: 196; Code: 10 means all text is actual text. Note that List: 81; Code: 10 on its own (without List: 196; Code: 10) admits the possibility that the "text" is inaccessible because it is an image of text. |
| visual | – |
| accessibilitySummary | List: 196; Code: 00: Accessibility Summary |
| Human-readable text | If present, include information from List: 196; Codes 95, 96, 98, and 99 (links for further information about accessibility) |