Ontology

XCO

Experimental condition ontology

Conditions under which physiological and morphological measurements are made both in the clinic and in studies involving humans or model organisms.

assaybiomedical scienceexperimental conditionexperimental measurementexperimentally determinedlife sciencemeasurementobo
B71

FAIR 47/48

Version 2026-10-17

Evaluated 26 Oct 2026

How scores work

Portals & registries

SourceIDVersionClassesPropertiesIndividualsLoaded
OLS (EMBL-EBI)xco2026-10-171,87425025 Oct 2026
OBO Dashboardxco2026-09-121,860——16 Sept 2026

Ontology IRI http://purl.obolibrary.org/obo/xco.owl
Version IRI http://purl.obolibrary.org/obo/xco/releases/2026-10-17/xco.owl

Languages en

Imports from (3)
CHEBI IAO RO

Reused by (4)
AGRO ADO ECTO GENEPIO

Logical consistency
consistent · 0 unsatisfiable
OWL 2 DL
no
ROBOT report
3 errors · 68 warnings · 1 info
OBO principles
FP01FP02FP03FP04FP05FP06FP07FP08FP09FP11FP12FP16FP20
Axioms
20,610 · 1.48% entities reused

Also registered as
aberowl: XCO bioportal: XCO fairsharing: FAIRsharing.x39h5y obofoundry: xco ols: xco ontobee: XCO wikidata.entity: Q81661839

Automated evaluation

F Findable FAIR12/12
  • Persistent identifier (F1)purl.obolibrary.org+4
  • Indexed in services (F4)5: OLS, BioPortal, OBO Foundry, Bioregistry, FAIRsharing+5
  • Citable reference (F2)doi:10.1186/2041-1480-4-26+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 3: chebi, iao, ro+4
R Reusable FAIR11/12
  • Clear license (R1.1)CC0 1.0+5
  • Release provenance (R1.2)2026-10-17 (version IRI in the artefact)+4
  • Community standards (R1.3)OBO principles: 8/13 checks pass+2
Q Ontology consistency & quality12/20
  • 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)imports RO+1
  • ROBOT report: no errors3 errors0
  • ROBOT report: warning density68 warnings / 1860 classes = 0.04+1
  • Pitfall scan: no critical pitfallsno pitfall scan yet; ROBOT report has 3 errors0
M Maintenance12/16
  • Recency2026-10-18 → 0.3 months (≤ 3 months)+10
  • Release cadence (12 months)1 release (OLS version IRI)+2
U Community adoption3/16
  • Documented adopting projects0 projects0
  • Reused by other ontologies4: agro, ado, ecto, genepio+2
  • Community signalmax(stars 2 → 0, citations 42 → 1)+1
P Penalties (inactivity & inconsistency)-3
  • Time since last activity0.0 years → 4 × max(0, 0.0 − 1)0
  • Inactive statusnot archived, legacy or inactive0
  • Consistencyconsistent, no unsatisfiable classes0
  • ROBOT report errors3 errors-3

FAIR subtotal 47/48 · earned 74/100 − 3 inactivity = 71/100 → grade B

Community adoption 0

No adopting projects documented yet.

Know a project that uses XCO? 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 UTC71 B472026-10-171,874JSON

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)rgd.mcw.edu26 Oct 2026, 03:30 UTC
Repository link check (HTTP 200)github.com26 Oct 2026, 03:30 UTC
Download link check (HTTP 200)purl.obolibrary.org26 Oct 2026, 03:30 UTC
Artefact header (version IRI)download.rgd.mcw.edu26 Oct 2026, 03:30 UTC
Git refs (commit bd78cfc)github.com26 Oct 2026, 03:30 UTC
GitHub repository statisticsapi.github.com26 Oct 2026, 03:30 UTC
OLS classes, imports, version & releaseebi.ac.uk26 Oct 2026, 03:30 UTC
OBO Foundry status, license & usagesobofoundry.org26 Oct 2026, 02:37 UTC
Bioregistry mappings, dependencies & reusebioregistry.io26 Oct 2026, 03:30 UTC
OBO Dashboard (checked 16 Sept 2026)dashboard.obofoundry.org26 Oct 2026, 02:37 UTC
Crossref citations (doi:10.1186/2041-1480-4-26)api.crossref.org26 Oct 2026, 02:43 UTC
Crossref citations (doi:10.3389/fgene.2012.00087)api.crossref.org26 Oct 2026, 02:43 UTC

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