How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Ontology / Vocabulary

65 data model standards at the ontology / vocabulary layer. Every one confirmed against its steward's own site.

Standard Steward Origin Domain Access Modernity
ASHRAE 223P Semantic Data Model ASHRAE — Built Environment spec sold 41.4 Legacy
BFO (Basic Formal Ontology) BFO community / ISO IEC 21838-2 — Cross Domain open 66.3 Modernizing
BIBFRAME Library of Congress United States national body Library open 65.6 Modernizing
BIBO (Bibliographic Ontology) Bibliographic Ontology community — Scholarly open 76.1 Current
Bioschemas Bioschemas community / ELIXIR International Life Sciences open 66.7 Modernizing
Brick Schema Brick Consortium — Built Environment open —
CARO (Common Anatomy Reference Ontology) OBO Foundry International Biology open 66.3 Modernizing
CIDOC CRM ICOM / CIDOC — Cultural Heritage open 65.3 Modernizing
CL (Cell Ontology) OBO Foundry International Biology open 69.9 Modernizing
ChEBI EMBL-EBI — Chemistry — 67.5 Modernizing
Creative Commons Rights Expression Language (ccREL) Creative Commons / W3C International United States Cross Domain open 65.4 Modernizing
Credential Engine CTDL Credential Engine — HR open 85.6 Current
Crop Ontology CGIAR / Crop Ontology Consortium — Agriculture open 60.3 Modernizing
DOAP (Description of a Project) DOAP community — Software Development open 82.2 Current
DOID (Human Disease Ontology) Disease Ontology project — Healthcare open 84.5 Current
ECO (Evidence and Conclusion Ontology) OBO Foundry / ECO project International Life Sciences open 73.1 Current
EMMO (Elementary Multiperspective Material Ontology) EMMC / EMMO consortium — Materials open 66.3 Modernizing
ENVO (Environment Ontology) OBO Foundry / EnvO project International Ecology open 69.0 Modernizing
EU Core Vocabularies (Person, Business, Location, Criterion) European Commission (SEMIC) Europe Government open 53.5 Modernizing
Event Ontology Centre for Digital Music, QMUL — Cross Domain open 66.2 Modernizing
FIBO (Financial Industry Business Ontology) EDM Council / OMG International Finance — 76.1 Current
FOAF FOAF project — Cross Domain open 67.0 Modernizing
FoodOn FoodOn Consortium / OBO Foundry International Food open —
Gene Ontology Gene Ontology Consortium — Biology open 69.0 Modernizing
GoodRelations Martin Hepp / merged into schema.org — Commerce — 63.1 Modernizing
IAO (Information Artifact Ontology) OBO Foundry International Cross Domain open 66.3 Modernizing
ISO 15926 ISO TC 184 SC 4 / POSC Caesar International Norway Chemical Engineering spec sold —
InPhO (Indiana Philosophy Ontology) Indiana University United States Philosophy licence —
Linked Art Linked Art community — Cultural Heritage open 70.0 Modernizing
MONDO Disease Ontology Monarch Initiative International Healthcare open 73.1 Current
MovieLabs Ontology for Media Creation (OMC) MovieLabs — Media — —
NBO (Neuro Behavior Ontology) OBO Foundry International Psychology open 66.3 Modernizing
Nomisma.org Nomisma.org / American Numismatic Society United States national body Cultural Heritage open 63.9 Modernizing
OBI (Ontology for Biomedical Investigations) OBO Foundry / OBI Consortium International Life Sciences open 66.3 Modernizing
OBO Foundry ontologies OBO Foundry International Biology open 66.3 Modernizing
OGC GeoSPARQL Open Geospatial Consortium / W3C International United States Geospatial open 70.0 Modernizing
OWL (Web Ontology Language) W3C International United States Cross Domain open 62.9 Modernizing
OntoLex-Lemon W3C Ontology-Lexica Community Group — Linguistics open 61.4 Modernizing
OpenStreetMap tagging schema OpenStreetMap Foundation / community United Kingdom Geospatial open —
OpenTelemetry Semantic Conventions CNCF / OpenTelemetry International United States Observability open —
Orphanet Rare Disease Ontology (ORDO) Orphanet / INSERM — Healthcare open 69.0 Modernizing
PATO (Phenotype And Trait Ontology) OBO Foundry International Biology open 66.3 Modernizing
PO (Plant Ontology) Plant Ontology Consortium — Agriculture open —
PRO (Protein Ontology) OBO Foundry / PRO Consortium International Proteomics open 69.0 Modernizing
PROV-O W3C International United States Cross Domain open 72.7 Current
Project Haystack Project Haystack — Built Environment open 72.7 Current
QUDT (Quantities, Units, Dimensions, Types) QUDT.org — Cross Domain open 77.4 Current
RDF / RDFS (Resource Description Framework) W3C International United States Cross Domain open 64.3 Modernizing
RDF Data Cube vocabulary (Resource Description Framework) W3C International United States Statistics open 69.0 Modernizing
RO (Relation Ontology) OBO Foundry International Cross Domain open 66.3 Modernizing
SAREF (Smart Applications REFerence ontology) ETSI — IoT open 60.3 Modernizing
SHACL W3C International United States Cross Domain open 63.3 Modernizing
SIOC (Semantically-Interlinked Online Communities) SIOC project / W3C member submission — Cross Domain open —
SKOS (Simple Knowledge Organization System) W3C International United States Cross Domain open 63.0 Modernizing
SPAR Ontologies (CiTO, FaBiO, FRAPO) SPAR Ontologies project — Scholarly open —
SSN / SOSA (Semantic Sensor Network ontology) W3C / OGC International United States IoT open 63.0 Modernizing
STATO (Statistical Methods Ontology) OBO Foundry / STATO project International Statistics open —
UO (Units of Measurement Ontology) OBO Foundry International Cross Domain open 66.3 Modernizing
Uberon multi-species anatomy ontology OBO Foundry / Uberon project International Biology open 66.3 Modernizing
Universal Dependencies UD community — Linguistics open 65.8 Modernizing
Vertebrate Trait Ontology (VT) OBO Foundry / Rat Genome Database International Animal Science open 66.3 Modernizing
W3C ORG ontology W3C International United States Cross Domain open 71.0 Modernizing
W3C Time Ontology in OWL W3C / OGC International United States Cross Domain open 67.1 Modernizing
WordNet Princeton University / Global WordNet Association International United States Linguistics open —
schema.org Product / Offer vocabulary W3C Schema.org Community Group International Cross Domain open 67.9 Modernizing
← All Data Models