Ontology

OBI

Ontology for Biomedical Investigations

The Ontology for Biomedical Investigations (OBI) project is developing an integrated ontology for the description of biological and clinical investigations. The ontology will represent the design of an investigation, the protocols and instrumentation used, the material used, the data generated and the type analysis performed on it. Currently OBI is being built under the Basic Formal Ontology (BFO).

assaybiomedical sciencedata transformationdataplantdevicefunctional genomicslife sciencelife sciences, biology
A96

FAIR 48/48

Version 2026-07-27

Evaluated 26 Oct 2026

How scores work

Source & access

Homepageobi-ontology.org Repositorygithub.com DownloadCanonical file / PURL Browse in OLSEMBL-EBI Ontology Lookup ServiceBrowse in BioPortalNCBO BioPortalBrowse in OBO FoundryOBO Foundry registry

Portals & registries

SourceIDVersionClassesPropertiesIndividualsLoaded
OLS (EMBL-EBI)obi2026-07-275,24018730325 Oct 2026
TIB Terminology Serviceobi2025-10-145,00219030324 Oct 2025
OBO Dashboardobi2026-07-274,993——16 Sept 2026

Ontology IRI http://purl.obolibrary.org/obo/obi.owl
Version IRI http://purl.obolibrary.org/obo/obi/2026-07-27/obi.owl

Languages en en-us

Imports from (32)
BFO CHEBI CHMO CL CLO COB ENVO FOODON GAZ GO HP IAO IDO MOP MRO NCBITaxon OBA OBIB OGMS OMO OMRSE OPL PATO PCO PO PR RO SO UBERON UO UPHENO VO

Reused by (119)
ADO AfPO AGRO APOLLO_SV BCO BMONT CHMO CIDO CLO COB CTO DIDEO DOID DRON DUO ECO ECOCORE EMRO ENVO FOODON GALLONT GECKO GENEPIO GENO GEOGEO GSSO HANCESTRO HSO HTN IAO ICO IDO LABO MAXO MCO MCRO MPIO MRO MS NCRO NGBO OAE OBA OBCS OBIB OCCO OGMS OHD OHMI OHPI OMRSE ONE ONS ONTONEO OOSTT OPL OPMI ORNASEQ PBPKO PCL PDRO PPO PREFER PROCO RBO RO RXNO SCDO SEPIO SLSO STATO TXPO VO ADDICTO AFO AISM BAO BCGO BCIO CAO CHEMINF COVOC CPONT DPO EFO ENM EPIO EUPATH EXMO FIDEO FLOPO FOVT GMHO GO HCAO ICEO IDOCOVID19 IDOMAL MFMO MFOMD MICRO MSIO OGSF OMIABIS OMIT OVAE PAIN PHIPO PLANA PO PRIDE PSDO PSO ROR SRAO SWO TO VALUESETS XPO

Logical consistency
consistent · 0 unsatisfiable
OWL 2 DL
yes
ROBOT report
0 errors · 122 warnings · 1,353 info
OBO principles
FP01FP02FP03FP04FP05FP06FP07FP08FP09FP11FP12FP16FP20
Axioms
41,653 · 15.16% entities reused

Also registered as
aberowl: OBI bioportal: OBI fairsharing: FAIRsharing.284e1z obofoundry: obi ols: obi ontobee: OBI tib.ts: obi wikidata.entity: Q7095051

Automated evaluation

F Findable FAIR12/12
  • Persistent identifier (F1)purl.obolibrary.org+4
  • Indexed in services (F4)6: OLS, TIB, BioPortal, OBO Foundry, Bioregistry, FAIRsharing+5
  • Citable reference (F2)doi:10.1371/journal.pone.0154556+3
A Accessible FAIR12/12
  • Homepage reachableHTTP 200+3
  • Artefact retrievable over HTTP(S) (A1)download HTTP 200+6
  • Metadata persists in a registry (A2)OBO Foundry, Bioregistry+3
I Interoperable FAIR12/12
  • Formal machine-readable format (I1)OWL, OBO+5
  • Semantic-web IRIs (I2)OWL, OBO+3
  • References other vocabularies (I3)imports 32: bfo, chebi, chmo, cl, clo, cob, envo, foodon…+4
R Reusable FAIR12/12
  • Clear license (R1.1)CC BY 4.0+5
  • Release provenance (R1.2)2026-07-27 (version IRI in the artefact)+4
  • Community standards (R1.3)OBO principles: 11/13 checks pass+3
Q Ontology consistency & quality20/20
  • Logical consistencyconsistent, 0 unsatisfiable classes (OBO Dashboard)+10
  • OWL 2 DL profilein OWL 2 DL+2
  • Upper-ontology alignmentimports BFO, COB+3
  • Standard relations (RO)imports RO+1
  • ROBOT report: no errors0 errors+2
  • ROBOT report: warning density122 warnings / 4993 classes = 0.02+1
  • Pitfall scan: no critical pitfallsno pitfall scan yet; ROBOT report has 0 errors+1
M Maintenance15/16
  • Recency2026-10-12 → 0.4 months (≤ 3 months)+10
  • Release cadence (12 months)5 releases (GitHub releases)+5
U Community adoption13/16
  • Documented adopting projects5 projects+5
  • Reused by other ontologies119: ado, afpo, agro, apollo_sv, bco, bmont…+4
  • Community signalmax(stars 112 → 4, citations 313 → 4)+4
P Penalties (inactivity & inconsistency)0
  • Time since last activity0.0 years → 4 × max(0, 0.0 − 1)0
  • Inactive statusnot archived, legacy or inactive0
  • Consistencyconsistent, no unsatisfiable classes0

FAIR subtotal 48/48 · earned 96/100 = 96/100 → grade A

Community adoption 5

  • iedb.org

    The Immune Epitope Database (IEDB) is funded by NIAID that catalogs experimental data on antibody and T cell epitopes studied in humans, non-human primates, and other animal species in the context of infectious disease, allergy, autoimmu…

    Source: OBO Foundry registry
  • encodeproject.org

    ENCODE is a comprehensive parts list of functional elements in the human genome, including elements that act at the protein and RNA levels, and regulatory elements that control cells and circumstances in which a gene is active.

    Source: OBO Foundry registry
  • genelab-data.ndc.nasa.gov

    The NASA GeneLab data repository hosts space biology and space-related datasets funded by multiple space agencies around the world.

    Source: OBO Foundry registry
  • app.nih-cfde.org

    The CFDE is providing a centralized metadata resource to allow search across data coordination centers from multiple Common Fund programs.

    Source: OBO Foundry registry
  • neuinfo.org

    NIF is a dynamic inventory of Web-based neuroscience resources, data, and tools accessible via any computer connected to the Internet.

    Source: OBO Foundry registry

Know a project that uses OBI? Suggest it.

History & changes 1 run

History starts with the first archived run; changes appear after the next evaluation.

RunScoreFAIRVersion evaluatedTermsSnapshot
26 Oct 2026, 03:31 UTC96 A482026-07-275,240JSON

Provenance

Every fact on this page was fetched automatically. Each row shows where it came from and when. If a source fails, the last good value is kept and marked “carried forward”.

FactSourceRetrieved
Homepage link check (HTTP 200)obi-ontology.org26 Oct 2026, 03:09 UTC
Repository link check (HTTP 200)github.com26 Oct 2026, 03:09 UTC
Download link check (HTTP 200)purl.obolibrary.org26 Oct 2026, 03:09 UTC
Artefact header (version IRI)raw.githubusercontent.com26 Oct 2026, 03:09 UTC
Git refs (commit 0ac5cb6, latest tag v2026-07-27)github.com26 Oct 2026, 03:09 UTC
GitHub repository statisticsapi.github.com26 Oct 2026, 03:09 UTC
OLS classes, imports, version & releaseebi.ac.uk26 Oct 2026, 03:09 UTC
OBO Foundry status, license & usagesobofoundry.org26 Oct 2026, 02:37 UTC
TIB Terminology Service metricsservice.tib.eu26 Oct 2026, 03:09 UTC
Bioregistry mappings, dependencies & reusebioregistry.io26 Oct 2026, 03:09 UTC
OBO Dashboard (checked 16 Sept 2026)dashboard.obofoundry.org26 Oct 2026, 02:37 UTC
Crossref citations (doi:10.1371/journal.pone.0154556)api.crossref.org26 Oct 2026, 03:09 UTC
Crossref citations (doi:10.1093/database/bau132)api.crossref.org26 Oct 2026, 03:09 UTC

Run 2026-10-26T02-37-38Z · evaluator v2.0.0 · rubric v3.4 · entry.json · run snapshot

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