Ontology

NEXUS

NeXus Ontology

NeXus is a common data format for neutron, x-ray, and muon experimental data. The NeXus Ontology is an ontology representation of the NeXus [definitions](https://github.com/nexusformat/definitions/).The [NeXus International Advisory Committee](https://www.nexusformat.org/NIAC.html) is responsible for NeXus.

fairmatmuonneutronnfdi-matwerkontologyphysicsx-ray
E22

FAIR 27/48

Version 54df1c1

Evaluated 26 Oct 2026

How scores work

Source & access

Homepagegithub.com DownloadCanonical file / PURL

Portals & registries

Also registered as
tib.ts: nexus

Automated evaluation

F Findable FAIR1/12
  • Persistent identifier (F1)no PURL / w3id / DOI for the artefact0
  • Indexed in services (F4)1: Bioregistry+1
  • 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 FAIR8/12
  • Formal machine-readable format (I1)OWL+5
  • Semantic-web IRIs (I2)OWL+3
  • References other vocabularies (I3)no imported vocabularies found0
R Reusable FAIR6/12
  • Clear license (R1.1)GFDL-1.3 (not a recognised open license)+2
  • Release provenance (R1.2)54df1c1 (version info in the artefact)+4
  • Community standards (R1.3)no independent compliance report (not on the OBO Dashboard)0
Q Ontology consistency & quality0/20
  • Logical consistencynever checked by a reasoner0
  • OWL 2 DL profileprofile not checked0
  • Upper-ontology alignmentno BFO/COB/DOLCE import found0
  • Standard relations (RO)does not import the Relation Ontology0
  • 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
  • Recency2024-04-11 → 30.5 months (older / unknown)0
  • Release cadence (12 months)0 releases0
U Community adoption1/16
  • Documented adopting projects0 projects0
  • Reused by other ontologies00
  • Community signalmax(stars 9 → 1, citations 0 → 0)+1
P Penalties (inactivity & inconsistency)-6
  • Time since last activity2.5 years → 4 × max(0, 2.5 − 1)-6
  • Inactive statusnot archived, legacy or inactive0
  • Consistencynot yet checked by a reasoner0

FAIR subtotal 27/48 · earned 28/100 − 6 inactivity = 22/100 → grade E

Community adoption 0

No adopting projects documented yet.

Know a project that uses NEXUS? 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 UTC22 E2754df1c1—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”.

FactSourceRetrieved
Homepage link check (HTTP 200)github.com26 Oct 2026, 03:07 UTC
Repository link check (HTTP 200)github.com26 Oct 2026, 03:07 UTC
Download link check (HTTP 200)github.com26 Oct 2026, 03:07 UTC
Artefact header (version info)raw.githubusercontent.com26 Oct 2026, 03:07 UTC
Git refs (commit 28894d5)github.com26 Oct 2026, 03:07 UTC
GitHub repository statisticsapi.github.com26 Oct 2026, 03:07 UTC
Bioregistry mappings, dependencies & reusebioregistry.io26 Oct 2026, 03:07 UTC

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