Ontology

okn.sd

The Software Description Ontology

An ontology for describing software components, including their metadata (attribution, licensing, usage instructions, how to get support) and their inputs, outputs and variables. The ontology extends schema.org and codemeta vocabularies and is based on OntoSoft, which proposed a vocabulary for describing software by asking scientists questions.

computer sciencenfdi4ingontology
E31

FAIR 32/48

Version 1.9.0

Evaluated 26 Oct 2026

How scores work

Source & access

Homepageknowledgecaptureanddiscovery.github.io Repositorygithub.com DownloadCanonical file / PURL

Portals & registries

SourceIDVersionClassesPropertiesIndividualsLoaded
TIB Terminology Servicesd1.9.033148031 Jan 2025

Also registered as
tib.ts: sd

Automated evaluation

F Findable FAIR3/12
  • Persistent identifier (F1)no PURL / w3id / DOI for the artefact0
  • Indexed in services (F4)2: TIB, Bioregistry+3
  • 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, RDF+5
  • Semantic-web IRIs (I2)OWL, RDF+3
  • References other vocabularies (I3)no imported vocabularies found0
R Reusable FAIR9/12
  • Clear license (R1.1)CC-BY-2.0+5
  • Release provenance (R1.2)1.9.0 (version IRI 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 Maintenance2/16
  • Recency2025-01-31 → 20.8 months (≤ 2 years)+2
  • Release cadence (12 months)0 releases (GitHub releases)0
U Community adoption0/16
  • Documented adopting projects0 projects0
  • Reused by other ontologies00
  • Community signalmax(stars 3 → 0, citations 0 → 0)0
P Penalties (inactivity & inconsistency)-3
  • Time since last activity1.7 years → 4 × max(0, 1.7 − 1)-3
  • Inactive statusnot archived, legacy or inactive0
  • Consistencynot yet checked by a reasoner0

FAIR subtotal 32/48 · earned 34/100 − 3 inactivity = 31/100 → grade E

Community adoption 0

No adopting projects documented yet.

Know a project that uses okn.sd? 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 UTC31 E321.9.0—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)knowledgecaptureanddiscovery.github.io26 Oct 2026, 03:10 UTC
Repository link check (HTTP 200)github.com26 Oct 2026, 03:10 UTC
Download link check (HTTP 200)knowledgecaptureanddiscovery.github.io26 Oct 2026, 03:10 UTC
Artefact header (version IRI)knowledgecaptureanddiscovery.github.io26 Oct 2026, 03:10 UTC
Git refs (commit c7de99d, latest tag v1.9.0)github.com26 Oct 2026, 03:10 UTC
GitHub repository statisticsapi.github.com26 Oct 2026, 03:10 UTC
TIB Terminology Service metricsservice.tib.eu26 Oct 2026, 03:10 UTC
Bioregistry mappings, dependencies & reusebioregistry.io26 Oct 2026, 03:10 UTC

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