Ontology

HCAO

Human Cell Atlas Ontology

Application ontology for human cell types, anatomy and development stages for the Human Cell Atlas.

ontology
E25

FAIR 31/48

Version 2023-05-16

Evaluated 26 Oct 2026

How scores work

Source & access

Homepagehumancellatlas.org DownloadCanonical file / PURL Browse in OLSEMBL-EBI Ontology Lookup Service

Portals & registries

SourceIDVersionClassesPropertiesIndividualsLoaded
OLS (EMBL-EBI)hcao2023-05-1622,6067113125 Oct 2026

Ontology IRI http://ontology.data.humancellatlas.org/ontologies/hcao
Version IRI http://ontology.data.humancellatlas.org/ontologies/hcao/releases/2023-05-16/hcao.owl

Languages en

Imports from (26)
APOLLO_SV BFO BSPO CARO CHEBI CL CLO DUO EFO ENVO GAZ GO HsapDv IAO MONDO NBO NCBITaxon NCIT OBI OMO PATO PR RO SO UBERON UO

Also registered as
ols: hcao

Automated evaluation

F Findable FAIR3/12
  • Persistent identifier (F1)no PURL / w3id / DOI for the artefact0
  • Indexed in services (F4)2: OLS, Bioregistry+3
  • 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)Bioregistry+3
I Interoperable FAIR12/12
  • Formal machine-readable format (I1)OWL+5
  • Semantic-web IRIs (I2)OWL+3
  • References other vocabularies (I3)imports 26: apollo_sv, bfo, bspo, caro, chebi, cl, clo, duo…+4
R Reusable FAIR4/12
  • Clear license (R1.1)none found0
  • Release provenance (R1.2)2023-05-16 (version IRI in the artefact)+4
  • Community standards (R1.3)no independent compliance report (not on the OBO Dashboard)0
Q Ontology consistency & quality4/20
  • Logical consistencynever checked by a reasoner0
  • OWL 2 DL profileprofile not checked0
  • Upper-ontology alignmentimports BFO+3
  • Standard relations (RO)imports RO+1
  • ROBOT report: no errorsno ROBOT report available0
  • ROBOT report: warning densityno ROBOT report available0
  • Pitfall scan: no critical pitfallsno pitfall scan or ROBOT report yet0
M Maintenance0/16
  • Recency2023-05-16 → 41.4 months (older / unknown)0
  • Release cadence (12 months)0 releases (OLS version IRI)0
U Community adoption0/16
  • Documented adopting projects0 projects0
  • Reused by other ontologies00
  • Community signalmax(stars 0 → 0, citations 0 → 0)0
P Penalties (inactivity & inconsistency)-10
  • Time since last activity3.4 years → 4 × max(0, 3.4 − 1)-10
  • Inactive statusnot archived, legacy or inactive0
  • Consistencynot yet checked by a reasoner0

FAIR subtotal 31/48 · earned 35/100 − 10 inactivity = 25/100 → grade E

Community adoption 0

No adopting projects documented yet.

Know a project that uses HCAO? 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 UTC25 E312023-05-1622,606JSON

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)humancellatlas.org26 Oct 2026, 02:58 UTC
Download link check (HTTP 200)raw.githubusercontent.com26 Oct 2026, 02:59 UTC
Artefact header (version IRI)raw.githubusercontent.com26 Oct 2026, 02:59 UTC
OLS classes, imports, version & releaseebi.ac.uk26 Oct 2026, 02:58 UTC
Bioregistry mappings, dependencies & reusebioregistry.io26 Oct 2026, 02:58 UTC

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