schema.org
schema.org vocabulary
Judgement: Assess
Web SEO/structured-data vocabulary; different audience from data-platform work.
Open vocabulary of types and properties for structured data on the web, originated by Google, Microsoft, Yahoo, and Yandex in 2011 and now stewarded by the schema.org Community Group at W3C. Provides ~800 types (Person, Organization, Product, Dataset, Article…) and thousands of properties.
Most often serialised as JSON-LD inside HTML pages so search engines can read structured data. The Dataset and DataCatalog types overlap with DCAT — and many open-data portals publish both views of the same metadata.
Why this is listed as niche
Mainstream on the public web — Google rich results, Bing, Yandex, and email actions all consume schema.org markup — but inside data-architecture and data-mesh contexts it rarely surfaces. Listed because anyone modelling cross-domain semantics will eventually meet it, and because it's the largest open-vocabulary effort by far.
At a glance
- Category
- Semantics
- Governance
- schema.org Community Group / W3C
- Status
- Stable; mainstream for web structured data, niche in data-architecture contexts
- First released
- 2011
Links
Related standards
Other standards in Semantics.
- DCAT — Data Catalog Vocabulary
- JSON-LD — JSON for Linking Data
- RDF/OWL — Resource Description Framework / Web Ontology Language
- SHACL — Shapes Constraint Language
- SKOS — Simple Knowledge Organization System
- OSI — Open Semantic Interchange
- ShEx — Shape Expressions Language
See schema.org in context
Open the interactive Data Landscape to compare schema.org against every other open standard, or grab the raw JSON. Spotted something wrong? Open an issue.