Ontology

OMO

OBO Metadata Ontology

An ontology specifies terms that are used to annotate ontology terms for all OBO ontologies. The ontology was developed as part of Information Artifact Ontology (IAO).

oboontology
B77

FAIR 43/48

Version 2026-09-25

Evaluated 26 Oct 2026

How scores work

Source & access

Homepagegithub.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)omo2026-09-2527852025 Oct 2026
OBO Dashboardomo2026-03-1627——18 Mar 2026

Ontology IRI http://purl.obolibrary.org/obo/omo.owl
Version IRI http://purl.obolibrary.org/obo/omo/releases/2026-09-25/omo.owl

Languages en

Imports from (1)
IAO

Reused by (203)
ADO AfPO AGRO AISM AMPHX APO APOLLO_SV ARO BCO BFO BMONT BSPO BTO CDNO CHEBI CHMO CIDO CIO CL CLAO CLO CLYH CMO COB COLAO CRO CTENO CTO CVDO DDANAT DDPHENO DIDEO DISDRIV DOID DPO DRON DUO ECAO ECO ECOCORE ECTO EMAPA ENVO EXMO ExO FAO FBbt FBcv FBdv FLOPO FOODON FOVT FYPO GALLONT GAZ GECKO GENEPIO GENO GEOGEO GNO GO GSSO HANCESTRO HAO HOM HP HsapDv HSO HTN IAO ICEO ICO IDO INO LABO LEPAO MA MAXO MCO MCRO MF MFOEM MFOMD MI MIAPA MMO MmusDv MOD MONDO MOP MP MPATH MPIO MRO MS NBO NCBITaxon NCIT NCRO NGBO NOMEN OAE OARCS OBA OBCS OBI OBIB OCCO OGG OGMS OHD OHMI OHPI OlatDv OMIT OMP OMRSE ONE ONS ONTOAVIDA ONTONEO OOSTT OPL OPMI ORNASEQ OVAE PATO PBPKO PCL PCO PDRO PdumDv PECO PHIPO PLANA PLANP PO PORO PPO PR PROCO PSDO PSO PW RBO RO RS RXNO SCDO SEPIO SLSO SO SPD STATO SYMP T4FS TAXRANK TO TRANS TTO TXPO UBERON UO UPHENO VBO VO VT VTO WBbt WBls WBPhenotype XAO XCO XLMOD XPO ZECO ZFA ZP ADDICTO BAO BCIO CHEMINF COHO CPONT EFO EMRO ENM EUPATH FBbi HCAO HGNC hgnc.genegroup HRA ICTV METPO MFMO PAIN PREFER PRIDE REHABO ROR SWO ZFS

Logical consistency
consistent · 0 unsatisfiable
OWL 2 DL
no
ROBOT report
0 errors · 13 warnings · 1 info
OBO principles
FP01FP02FP03FP04FP05FP06FP07FP08FP09FP11FP12FP16FP20
Axioms
663 · 15.52% entities reused

OOPS!: 0 critical · 1 important · 2 minor pitfall types

Also registered as
aberowl: OMO bioportal: OMO obofoundry: omo ols: omo ontobee: OMO wikidata.entity: Q113012675

Automated evaluation

F Findable FAIR9/12
  • Persistent identifier (F1)purl.obolibrary.org+4
  • Indexed in services (F4)4: OLS, BioPortal, OBO Foundry, Bioregistry+5
  • Citable reference (F2)no reference publication listed0
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 FAIR10/12
  • Formal machine-readable format (I1)OWL+5
  • Semantic-web IRIs (I2)OWL+3
  • References other vocabularies (I3)imports 1: iao+2
R Reusable FAIR12/12
  • Clear license (R1.1)CC0 1.0+5
  • Release provenance (R1.2)2026-09-25 (version IRI in the artefact)+4
  • Community standards (R1.3)OBO principles: 12/13 checks pass+3
Q Ontology consistency & quality13/20
  • Logical consistencyconsistent, 0 unsatisfiable classes (OBO Dashboard)+10
  • OWL 2 DL profileoutside OWL 2 DL0
  • Upper-ontology alignmentno BFO/COB/DOLCE import found0
  • Standard relations (RO)does not import the Relation Ontology0
  • ROBOT report: no errors0 errors+2
  • ROBOT report: warning density13 warnings / 27 classes = 0.480
  • Pitfall scan: no critical pitfalls0 critical, 1 important, 2 minor pitfall types (OOPS! (local Docker))+1
M Maintenance13/16
  • Recency2026-09-25 → 1.0 months (≤ 3 months)+10
  • Release cadence (12 months)2 releases (GitHub releases)+3
U Community adoption8/16
  • Documented adopting projects1 project+2
  • Reused by other ontologies203: ado, afpo, agro, aism, amphx, apo…+4
  • Community signalmax(stars 27 → 2, citations 0 → 0)+2
P Penalties (inactivity & inconsistency)0
  • Time since last activity0.1 years → 4 × max(0, 0.1 − 1)0
  • Inactive statusnot archived, legacy or inactive0
  • Consistencyconsistent, no unsatisfiable classes0

FAIR subtotal 43/48 · earned 77/100 = 77/100 → grade B

Community adoption 1

  • obofoundry.org

    OMO is imported by multiple OBO ontologies for ontology term annotations.

    Source: OBO Foundry registry

Know a project that uses OMO? 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 UTC77 B432026-09-2527JSON

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)github.com26 Oct 2026, 03:11 UTC
Repository link check (HTTP 200)github.com26 Oct 2026, 03:11 UTC
Download link check (HTTP 200)purl.obolibrary.org26 Oct 2026, 03:11 UTC
Artefact header (version IRI)raw.githubusercontent.com26 Oct 2026, 03:11 UTC
Git refs (commit 1058ce1, latest tag v2026-09-25)github.com26 Oct 2026, 03:11 UTC
GitHub repository statisticsapi.github.com26 Oct 2026, 03:11 UTC
OLS classes, imports, version & releaseebi.ac.uk26 Oct 2026, 03:11 UTC
OBO Foundry status, license & usagesobofoundry.org26 Oct 2026, 02:37 UTC
Bioregistry mappings, dependencies & reusebioregistry.io26 Oct 2026, 03:11 UTC
OBO Dashboard (checked 18 Mar 2026)dashboard.obofoundry.org26 Oct 2026, 02:37 UTC
OOPS! pitfall scanoops.linkeddata.es25 Oct 2026, 21:53 UTC

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