Ontology

sioc.core

Semantically-Interlinked Online Communities Core Ontology

Semantically-Interlinked Online Communities, or SIOC, is an attempt to link online community sites, to use Semantic Web technologies to describe the information that communities have about their structure and contents, and to find related information and new connections between content items and other community objects. SIOC is based around the use of machine-readable information provided by these sites.

ontologysiocsociety
E13

FAIR 30/48

Version Revision: 1.36

Evaluated 26 Oct 2026

How scores work

Source & access

Homepagerdfs.org DownloadCanonical file / PURL

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 FAIR9/12
  • Clear license (R1.1)CC-BY-1.0+5
  • Release provenance (R1.2)Revision: 1.36 (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
  • Recency2020-06-05 → 76.7 months (older / unknown)0
  • Release cadence (12 months)0 releases0
U Community adoption3/16
  • Documented adopting projects0 projects0
  • Reused by other ontologies14 vocabularies (LOV)+3
  • Community signalmax(stars 0 → 0, citations 0 → 0)0
P Penalties (inactivity & inconsistency)-20
  • Time since last activity6.4 years → 4 × max(0, 6.4 − 1) (capped)-20
  • Inactive statusnot archived, legacy or inactive0
  • Consistencynot yet checked by a reasoner0

FAIR subtotal 30/48 · earned 33/100 − 20 inactivity = 13/100 → grade E

Community adoption 0

No adopting projects documented yet.

Know a project that uses sioc.core? 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 UTC13 E30Revision: 1.36—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)rdfs.org26 Oct 2026, 03:22 UTC
Download link check (HTTP 200)rdfs.org26 Oct 2026, 03:22 UTC
Artefact header (version info)rdfs.org26 Oct 2026, 03:22 UTC
Bioregistry mappings, dependencies & reusebioregistry.io26 Oct 2026, 03:22 UTC

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