{
  "id": "frbr",
  "acronym": "FRBR",
  "name": "Functional Requirements for Bibliographic Records",
  "category": "metadata",
  "domains": [
    "humanities"
  ],
  "kind": "vocabulary",
  "description": "The Essential FRBR in OWL2 DL Ontology (FRBR) is an expression in OWL 2 DL of the basic concepts and relations described in the IFLA report on the Functional Requirements for Bibliographic Records (FRBR), also described in Ian Davis's RDF vocabulary. It is imported by FaBiO and BiRO.",
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    "RDF"
  ],
  "homepage": "http://www.sparontologies.net/ontologies/frbr",
  "repository": "https://github.com/sparontologies/frbr",
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      "reusedByDatasets": 12,
      "occurrencesInDatasets": 30759946,
      "modified": "2009-05-16",
      "namespace": "http://purl.org/vocab/frbr/core#"
    }
  },
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  "usedBy": [],
  "tags": [
    "frbr",
    "subject agnostic"
  ],
  "url": "https://schemascope.org/o/frbr/",
  "evaluation": {
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      "homepage": {
        "url": "http://www.sparontologies.net/ontologies/frbr",
        "code": 200,
        "state": "ok",
        "resolvedUrl": "https://www.sparontologies.net/ontologies/frbr",
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      },
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        "state": "ok",
        "checkedAt": "2026-10-26T02:56:18.006Z"
      },
      "download": null
    },
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      "stars": 2,
      "forks": 2,
      "openIssues": 1,
      "pushedAt": "2026-09-09T08:32:27Z",
      "archived": false,
      "license": "CC-BY-4.0",
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        "tag": "v1.1.0",
        "date": "2026-09-09T08:32:28Z",
        "url": "https://github.com/SPAROntologies/frbr/releases/tag/v1.1.0"
      },
      "source": "https://api.github.com/repos/sparontologies/frbr",
      "fetchedAt": "2026-10-26T02:56:18.007Z"
    },
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    "obo": null,
    "bioportal": null,
    "citations": [],
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        "name": "v1.1.0",
        "commit": "0ac67d402e9d66e1475ec18fb4f6e05f00ea2e6d",
        "url": "https://github.com/sparontologies/frbr/releases/tag/v1.1.0"
      },
      "tagCount": 1,
      "tagDates": [],
      "url": "https://github.com/sparontologies/frbr/tree/0ac67d402e9d66e1475ec18fb4f6e05f00ea2e6d",
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      "fetchedAt": "2026-10-26T02:56:17.658Z"
    },
    "tib": null,
    "dashboard": null,
    "quality": null,
    "oops": null,
    "releases": {
      "dates": [
        "2026-09-09"
      ],
      "lastYear": 1,
      "from": "GitHub releases"
    },
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      "prefix": "frbr",
      "name": "Functional Requirements for Bibliographic Records",
      "mappings": {
        "fairsharing": "FAIRsharing.b34b43",
        "lov": "frbr",
        "zazuko": "frbr"
      },
      "dependsOn": [],
      "appearsIn": [],
      "license": null,
      "version": null,
      "deprecated": false,
      "page": "https://bioregistry.io/frbr",
      "source": "https://bioregistry.io/api/registry/frbr",
      "fetchedAt": "2026-10-26T02:56:17.484Z"
    },
    "artifact": null,
    "score": 41,
    "gross": 41,
    "earned": 41,
    "possible": 100,
    "qualityApplies": true,
    "penalty": {
      "score": 0,
      "reason": "no penalties (active)",
      "steps": [
        {
          "label": "Time since last activity",
          "pts": 0,
          "detail": "0.1 years → 4 × max(0, 0.1 − 1)"
        },
        {
          "label": "Inactive status",
          "pts": 0,
          "detail": "not archived, legacy or inactive"
        },
        {
          "label": "Consistency",
          "pts": 0,
          "detail": "not yet checked by a reasoner"
        }
      ]
    },
    "consistent": null,
    "grade": "D",
    "fair": 27,
    "breakdown": {
      "findable": {
        "score": 3,
        "max": 12,
        "steps": [
          {
            "label": "Persistent identifier (F1)",
            "pts": 0,
            "max": 4,
            "detail": "no PURL / w3id / DOI for the artefact"
          },
          {
            "label": "Indexed in services (F4)",
            "pts": 3,
            "max": 5,
            "detail": "2: Bioregistry, FAIRsharing"
          },
          {
            "label": "Citable reference (F2)",
            "pts": 0,
            "max": 3,
            "detail": "no reference publication listed"
          }
        ],
        "notes": [
          "Persistent identifier (F1): no PURL / w3id / DOI for the artefact",
          "Indexed in services (F4): 2: Bioregistry, FAIRsharing",
          "Citable reference (F2): no reference publication listed"
        ]
      },
      "accessible": {
        "score": 9,
        "max": 12,
        "steps": [
          {
            "label": "Homepage reachable",
            "pts": 3,
            "max": 3,
            "detail": "HTTP 200"
          },
          {
            "label": "Artefact retrievable over HTTP(S) (A1)",
            "pts": 3,
            "max": 6,
            "detail": "only the source repository is reachable (no direct download)"
          },
          {
            "label": "Metadata persists in a registry (A2)",
            "pts": 3,
            "max": 3,
            "detail": "Bioregistry"
          }
        ],
        "notes": [
          "Artefact retrievable over HTTP(S) (A1): only the source repository is reachable (no direct download)"
        ]
      },
      "interoperable": {
        "score": 8,
        "max": 12,
        "steps": [
          {
            "label": "Formal machine-readable format (I1)",
            "pts": 5,
            "max": 5,
            "detail": "RDF"
          },
          {
            "label": "Semantic-web IRIs (I2)",
            "pts": 3,
            "max": 3,
            "detail": "RDF"
          },
          {
            "label": "References other vocabularies (I3)",
            "pts": 0,
            "max": 4,
            "detail": "no imported vocabularies found"
          }
        ],
        "notes": [
          "References other vocabularies (I3): no imported vocabularies found"
        ]
      },
      "reusable": {
        "score": 7,
        "max": 12,
        "steps": [
          {
            "label": "Clear license (R1.1)",
            "pts": 5,
            "max": 5,
            "detail": "CC-BY-4.0"
          },
          {
            "label": "Release provenance (R1.2)",
            "pts": 2,
            "max": 4,
            "detail": "v1.1.0 (latest GitHub release); not declared inside the artefact"
          },
          {
            "label": "Community standards (R1.3)",
            "pts": 0,
            "max": 3,
            "detail": "no independent compliance report (not on the OBO Dashboard)"
          }
        ],
        "notes": [
          "Release provenance (R1.2): v1.1.0 (latest GitHub release); not declared inside the artefact",
          "Community standards (R1.3): no independent compliance report (not on the OBO Dashboard)"
        ]
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      "quality": {
        "score": 0,
        "max": 20,
        "steps": [
          {
            "label": "Logical consistency",
            "pts": 0,
            "max": 10,
            "detail": "never checked by a reasoner"
          },
          {
            "label": "OWL 2 DL profile",
            "pts": 0,
            "max": 2,
            "detail": "profile not checked"
          },
          {
            "label": "Upper-ontology alignment",
            "pts": 0,
            "max": 3,
            "detail": "no BFO/COB/DOLCE import found"
          },
          {
            "label": "Standard relations (RO)",
            "pts": 0,
            "max": 1,
            "detail": "does not import the Relation Ontology"
          },
          {
            "label": "ROBOT report: no errors",
            "pts": 0,
            "max": 2,
            "detail": "no ROBOT report available"
          },
          {
            "label": "ROBOT report: warning density",
            "pts": 0,
            "max": 1,
            "detail": "no ROBOT report available"
          },
          {
            "label": "Pitfall scan: no critical pitfalls",
            "pts": 0,
            "max": 1,
            "detail": "no pitfall scan or ROBOT report yet"
          }
        ],
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          "Logical consistency: never checked by a reasoner",
          "OWL 2 DL profile: profile not checked",
          "Upper-ontology alignment: no BFO/COB/DOLCE import found",
          "Standard relations (RO): does not import the Relation Ontology",
          "ROBOT report: no errors: no ROBOT report available",
          "ROBOT report: warning density: no ROBOT report available",
          "Pitfall scan: no critical pitfalls: no pitfall scan or ROBOT report yet"
        ]
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      "maintenance": {
        "score": 12,
        "max": 16,
        "steps": [
          {
            "label": "Recency",
            "pts": 10,
            "max": 10,
            "detail": "2026-09-09 → 1.5 months (≤ 3 months)"
          },
          {
            "label": "Release cadence (12 months)",
            "pts": 2,
            "max": 6,
            "detail": "1 release (GitHub releases)"
          }
        ],
        "notes": [
          "Release cadence (12 months): 1 release (GitHub releases)"
        ]
      },
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        "score": 2,
        "max": 16,
        "steps": [
          {
            "label": "Documented adopting projects",
            "pts": 0,
            "max": 7,
            "detail": "0 projects"
          },
          {
            "label": "Reused by other ontologies",
            "pts": 2,
            "max": 4,
            "detail": "8 vocabularies (LOV)"
          },
          {
            "label": "Community signal",
            "pts": 0,
            "max": 5,
            "detail": "max(stars 2 → 0, citations 0 → 0)"
          }
        ],
        "notes": [
          "Documented adopting projects: 0 projects",
          "Reused by other ontologies: 8 vocabularies (LOV)",
          "Community signal: max(stars 2 → 0, citations 0 → 0)"
        ]
      }
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    "adopterCount": 0,
    "reuseCount": 8,
    "importCount": 0,
    "registries": [
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        "repository": "ok"
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      "rubric": "3.4",
      "snapshot": "https://schemascope.org/runs/2026-10-26T02-37-38Z.json"
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    "retrievedAt": "2026-10-25T21:49:00Z",
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        "url": "https://bioregistry.io/api/registry/frbr",
        "retrievedAt": "2026-10-25T21:49:00Z"
      },
      {
        "registry": "Linked Open Vocabularies (LOV)",
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        "url": "https://lov.linkeddata.es/dataset/lov/vocabs/frbr",
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      "name": "Bioregistry",
      "description": "Bioregistry",
      "homepage": "Bioregistry",
      "repository": "Bioregistry",
      "tags": "Bioregistry",
      "download": "Linked Open Vocabularies (LOV)",
      "formats": "Linked Open Vocabularies (LOV)"
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}