Ontology

PCL

Provisional Cell Ontology

Holds data-driven cell types (e.g. from single-cell transcriptomics of the brain) before they are ready for the Cell Ontology, linked to their source taxonomies.

cell typestranscriptomicsOBO Foundry
C59

FAIR 47/48

Version 2025-07-07

Evaluated 27 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)pcl2025-07-0737,2105769,21327 Oct 2026
OBO Dashboardpcl2025-07-0727,777——11 Dec 2025

Ontology IRI http://purl.obolibrary.org/obo/pcl.owl
Version IRI http://purl.obolibrary.org/obo/pcl/releases/2025-07-07/pcl.owl

Languages en

Imports from (20)
BFO BSPO ChEBI CL COB GO IAO MOD NBO NCBITaxon OBI OMO PATO PR RO schema.org SEMAPV SO STATO UBERON

Reused by (3)
CL HRA PHIPO

Logical consistency
consistent · 0 unsatisfiable
OWL 2 DL
yes
ROBOT report
1,138 errors · 14,875 warnings · 1 info
OBO principles
FP01FP02FP03FP04FP05FP06FP07FP08FP09FP11FP12FP16FP20
Axioms
486,086 · 37.81% entities reused

Also registered as
aberowl: PCL bioportal: PCL fairsharing: FAIRsharing.bfcfd0 obofoundry: pcl ols: pcl ontobee: PCL wikidata.entity: Q113014435

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:10.1101/2021.10.10.463703+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 20: bfo, bspo, chebi, cl, cob, go, iao, mod…+4
R Reusable FAIR11/12
  • Clear license (R1.1)CC BY 4.0+5
  • Release provenance (R1.2)2025-07-07 (version IRI in the artefact)+4
  • Community standards (R1.3)OBO principles: 8/13 checks pass+2
Q Ontology consistency & quality16/20
  • 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 errors1138 errors0
  • ROBOT report: warning density14875 warnings / 27777 classes = 0.540
  • Pitfall scan: no critical pitfallsno pitfall scan yet; ROBOT report has 1138 errors0
M Maintenance2/16
  • Recency2025-07-08 → 15.7 months (≤ 2 years)+2
  • Release cadence (12 months)0 releases (GitHub releases)0
U Community adoption5/16
  • Documented adopting projects1 project+2
  • Reused by other ontologies3: cl, hra, phipo+2
  • Community signalmax(stars 12 → 1, citations 22 → 1)+1
P Penalties (inactivity & inconsistency)-11
  • Time since last activity1.3 years → 4 × max(0, 1.3 − 1)-1
  • Inactive statusnot archived, legacy or inactive0
  • Consistencyconsistent, no unsatisfiable classes0
  • ROBOT report errors1138 errors-10

FAIR subtotal 47/48 · earned 70/100 − 11 inactivity = 59/100 → grade C

Community adoption 1

  • BICAN

    Transcriptomic brain cell types

    Curated by SchemaScope

Know a project that uses PCL? Suggest it.

History & changes 2 runs

26 Oct 2026: 5927 Oct 2026: 59Score over time
Metrics across runs
27 Oct 2026
rubric v3.5		26 Oct 2026
rubric v3.4
Score5959
Findable1212
Accessible1212
Interoperable1212
Reusable1111
Quality1616
Maintenance22
Adoption55
Penalty-11-11
Logically consistentyesyes
Unsatisfiable classes00
In OWL 2 DLyesyes
ROBOT errors1,1381,138
ROBOT warnings14,87514,875
Imported vocabularies2020
Reused by33

Newest run first. Highlighted cells changed since the run before; hover to see the earlier value. A rubric change alone can move points.

No changes detected between runs.

RunScoreFAIRVersion evaluatedTermsSnapshot
27 Oct 2026, 21:58 UTC59 C472025-07-0737,210JSON
26 Oct 2026, 03:31 UTC59 C472025-07-0737,210JSON

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.com27 Oct 2026, 21:58 UTC
Repository link check (HTTP 200)github.com27 Oct 2026, 21:58 UTC
Download link check (HTTP 200)purl.obolibrary.org27 Oct 2026, 21:58 UTC
Artefact header (version IRI)release-assets.githubusercontent.com27 Oct 2026, 21:58 UTC
Git refs (commit 7b166cb, latest tag v2025-07-08)github.com27 Oct 2026, 21:58 UTC
GitHub repository statisticsapi.github.com27 Oct 2026, 21:58 UTC
OLS classes, imports, version & releaseebi.ac.uk27 Oct 2026, 21:58 UTC
OBO Foundry status, license & usagesobofoundry.org27 Oct 2026, 21:58 UTC
Bioregistry mappings, dependencies & reusebioregistry.io27 Oct 2026, 21:58 UTC
OBO Dashboard (checked 11 Dec 2025)dashboard.obofoundry.org27 Oct 2026, 21:58 UTC
Crossref citations (doi:10.1101/2021.10.10.463703)api.crossref.org27 Oct 2026, 21:58 UTC
Crossref citations (doi:10.1038/s41597-022-01886-2)api.crossref.org27 Oct 2026, 21:58 UTC

Run 2026-10-27T21-58-30Z · evaluator v2.0.0 · rubric v3.5 · entry.json · run snapshot

How to cite