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EPUB and EPUB Accessibility metadata

Metadata Model Publishing openly published

EPUB® defines a distribution and interchange format for digital publications and documents. The EPUB format provides a means of representing, packaging and encoding structured and semantically enhanced Web content—including HTML, CSS, SVG and other resources—for distribution in a single-file container....

W3C, from their own opening paragraph

Other publishing data models

Thema and BISAC subject codes Code System
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Model Details
Steward W3C
Origin International United States
Layer Metadata Model
Domain Publishing
Status live
Access Openly published
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How I know this

Compiled for the API Evangelist data model catalog, then confirmed against the steward's own site.

Confirmed 2026-08-11

Evidence: name evidence 2/3. Found something wrong? Tell me — corrections are cheap and I would rather be right.

Modernity Profile
73.3 Current
Access Open
Assessed 90.0% of the rubric

A separate measure from the Kin Score, which rates API providers. This rates how current a standard is in how it is expressed, published and paid for — not how good it is. EDIFACT and X12 score low here and move an enormous share of world trade.

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