Ontology

ORPHA

Orphanet

Orphanet is a reference portal for information on rare diseases and orphan drugs. It’s aim is to help improve the diagnosis, care and treatment of patients with rare diseases.

bibliography/documentsdiseasedrughealth/diseasehumanontologyorganism-specific databases

E23

FAIR 26/48

Version 4.9

Evaluated 26 Oct 2026

How scores work

Source & access

Homepageorpha.net DownloadCanonical file / PURL Browse in OLSEMBL-EBI Ontology Lookup Service

homepage orpha.net HTTP 200
download orphadata.org HTTP fetch failed

Portals & registries

Source	ID	Version	Classes	Properties	Individuals	Loaded
OLS (EMBL-EBI)	`ordo`	4.9	16,296	37	0	25 Oct 2026

Ontology IRI https://www.orphadata.com/data/ontologies/ordo/last_version/ORDO_en_4.9.owl
Version IRI https://www.orphadata.com/data/ontologies/ordo/last_version/ORDO_en_4.9.owl

Languages en

Imports from (2)
ECO RO

Reused by (2)
EFO PRIDE

Also registered as
ols: ordo wikidata.entity: Q929833

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 FAIR6/12

Homepage reachableHTTP 200+3
Artefact retrievable over HTTP(S) (A1)unreachable0
Metadata persists in a registry (A2)Bioregistry+3

I Interoperable FAIR10/12

Formal machine-readable format (I1)OWL+5
Semantic-web IRIs (I2)OWL+3
References other vocabularies (I3)imports 2: eco, ro+2

R Reusable FAIR7/12

Clear license (R1.1)CC BY 4.0+5
Release provenance (R1.2)4.9 (OLS); not declared inside the artefact+2
Community standards (R1.3)no independent compliance report (not on the OBO Dashboard)0

Q Ontology consistency & quality1/20

Logical consistencynever checked by a reasoner0
OWL 2 DL profileprofile not checked0
Upper-ontology alignmentno BFO/COB/DOLCE import found0
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

Recencyno activity evidence0
Release cadence (12 months)0 releases0

U Community adoption1/16

Documented adopting projects0 projects0
Reused by other ontologies2: efo, pride+1
Community signalmax(stars 0 → 0, citations 0 → 0)0

P Penalties (inactivity & inconsistency)-5

No activity evidenceno commits, releases or dated files found-5
Inactive statusnot archived, legacy or inactive0
Consistencynot yet checked by a reasoner0

FAIR subtotal 26/48 · earned 28/100 − 5 inactivity = 23/100 → grade E

Community adoption 0

No adopting projects documented yet.

Know a project that uses ORPHA? 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	23 E	26	4.9	16,296	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)	orpha.net	26 Oct 2026, 03:12 UTC
Download link check (HTTP fetch failed)	orphadata.org	26 Oct 2026, 03:13 UTC
OLS classes, imports, version & release	ebi.ac.uk	26 Oct 2026, 03:12 UTC
Bioregistry mappings, dependencies & reuse	bioregistry.io	26 Oct 2026, 03:12 UTC