Ontology
OBA
Ontology of Biological Attributes
A collection of biological attributes (traits) covering all kingdoms of life. Interoperable with VT (vertebrate trait ontology) and TO (plant trait ontology). Extends PATO.
Source & access
- homepage github.com HTTP 200
- repository github.com HTTP 200
- download purl.obolibrary.org HTTP 200
Portals & registries
| Source | ID | Version | Classes | Properties | Individuals | Loaded |
|---|---|---|---|---|---|---|
| OLS (EMBL-EBI) | oba | 2026-10-10 | 83,548 | 412 | 19 | 25 Oct 2026 |
| OBO Dashboard | oba | 2026-07-14 | 42,239 | — | — | 18 Jul 2026 |
Ontology IRI http://purl.obolibrary.org/obo/oba.owl
Version IRI http://purl.obolibrary.org/obo/oba/releases/2026-10-10/oba.owl
Languages en
Imports from (21)
BFO BSPO CHEBI CL COB GO HP IAO MONDO NBO NCBITaxon NCIT OBI OMO PATO PO PR RO SLM SO UBERON
Reused by (13)
FOVT OBI ADO CPONT EFO ENM EPIO GENEPIO GO ONS PREFER PRIDE UPHENO
- Logical consistency
- consistent · 0 unsatisfiable
- OWL 2 DL
- yes
- ROBOT report
- 0 errors · 147 warnings · 0 info
- OBO principles
- FP01FP02FP03FP04FP05FP06FP07FP08FP09FP11FP12FP16FP20
- Axioms
- 245,778 · 39.88% entities reused
Also registered as
aberowl: OBA agroportal: OBA biodivportal: OBA bioportal: OBA fairsharing: FAIRsharing.mp0rwf obofoundry: oba ols: oba ontobee: OBA wikidata.entity: Q81661730
Automated evaluation
- Persistent identifier (F1)purl.obolibrary.org+4
- Indexed in services (F4)5: OLS, BioPortal, OBO Foundry, Bioregistry, FAIRsharing+5
- Citable reference (F2)doi:10.1007/s00335-023-09992-1+3
- Homepage reachableHTTP 200+3
- Artefact retrievable over HTTP(S) (A1)download HTTP 200+6
- Metadata persists in a registry (A2)OBO Foundry, Bioregistry+3
- Formal machine-readable format (I1)OWL, OBO+5
- Semantic-web IRIs (I2)OWL, OBO+3
- References other vocabularies (I3)imports 21: bfo, bspo, chebi, cl, cob, go, hp, iao…+4
- Clear license (R1.1)CC0 1.0+5
- Release provenance (R1.2)2026-10-10 (version IRI in the artefact)+4
- Community standards (R1.3)OBO principles: 12/13 checks pass+3
- 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 density147 warnings / 42239 classes = 0.00+1
- Pitfall scan: no critical pitfallsno pitfall scan yet; ROBOT report has 0 errors+1
- Recency2026-10-19 → 0.2 months (≤ 3 months)+10
- Release cadence (12 months)4 releases (GitHub releases)+5
- Documented adopting projects4 projects+4
- Reused by other ontologies13: fovt, obi, ado, cpont, efo, enm…+3
- Community signalmax(stars 32 → 2, citations 23 → 1)+2
- 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 92/100 = 92/100 → grade A
Community adoption 4
- ebi.ac.uk
OBA terms are used by the NHGRI-EBI GWAS Catalog for phenotypic trait annotation.
Source: OBO Foundry registry - platform.opentargets.org
OBA trait terms facilitate computational drug target identification via the Open Targets Platform.
Source: OBO Foundry registry - eol.org
The Encyclopedia of Life (EOL) TraitBank takes advantage of the well-axiomatised OBA terms to infer traits in biodiversity data and to improve their search functionality.
Source: OBO Foundry registry - futres.org
OBA terms are used by the Functional Trait Resource for Environmental Studies (FuTRES) for the annotation of measurable traits in vertebrates.
Source: OBO Foundry registry
Know a project that uses OBA? Suggest it.
History & changes 1 run
History starts with the first archived run; changes appear after the next evaluation.
| Run | Score | FAIR | Version evaluated | Terms | Snapshot |
|---|---|---|---|---|---|
| 26 Oct 2026, 03:31 UTC | 92 A | 48 | 2026-10-10 | 83,548 | JSON |
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”.
| Fact | Source | Retrieved |
|---|---|---|
| Homepage link check (HTTP 200) | github.com | 26 Oct 2026, 03:09 UTC |
| Repository link check (HTTP 200) | github.com | 26 Oct 2026, 03:09 UTC |
| Download link check (HTTP 200) | purl.obolibrary.org | 26 Oct 2026, 03:09 UTC |
| Artefact header (version IRI) | release-assets.githubusercontent.com | 26 Oct 2026, 03:09 UTC |
| Git refs (commit ff27a30, latest tag v2026-10-10) | github.com | 26 Oct 2026, 03:09 UTC |
| GitHub repository statistics | api.github.com | 26 Oct 2026, 03:09 UTC |
| OLS classes, imports, version & release | ebi.ac.uk | 26 Oct 2026, 03:09 UTC |
| OBO Foundry status, license & usages | obofoundry.org | 26 Oct 2026, 02:37 UTC |
| Bioregistry mappings, dependencies & reuse | bioregistry.io | 26 Oct 2026, 03:09 UTC |
| OBO Dashboard (checked 18 Jul 2026) | dashboard.obofoundry.org | 26 Oct 2026, 02:37 UTC |
| Crossref citations (doi:10.1007/s00335-023-09992-1) | api.crossref.org | 26 Oct 2026, 03:09 UTC |
| Crossref citations (doi:10.1101/2023.01.26.525742) | api.crossref.org | 26 Oct 2026, 03:09 UTC |
Run 2026-10-26T02-37-38Z · evaluator v2.0.0 · rubric v3.4 · entry.json · run snapshot
How to cite
- The Ontology of Biological Attributes (OBA)-computational traits for the life sciences (2023) · doi:10.1007/s00335-023-09992-1 · 23 citations
- The Ontology of Biological Attributes (OBA) - Computational Traits for the Life Sciences (2023) · doi:10.1101/2023.01.26.525742 · 0 citations