{
  "id": "sddo",
  "acronym": "SDDO",
  "name": "Science Data Discovery Ontology",
  "category": "life",
  "kind": "ontology",
  "description": "The Science Data Discovery Ontology (sddo) is being developed to provide a semantic foundation for the discovery of information managed by NASA's Science Mission Directorate. This information spans many scientific disciplines, fields and subfields, including heliophysics, earth science, planetary science, astrophysics, biology, astrobiology, and physical science. [from repository]",
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    "OBO",
    "JSON"
  ],
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  "usedBy": [],
  "tags": [
    "ontology"
  ],
  "url": "https://schemascope.org/o/sddo/",
  "evaluation": {
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        "url": "https://github.com/NASA-IMPACT/sddo",
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        "checkedAt": "2026-10-26T03:20:50.480Z"
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      "forks": 2,
      "openIssues": 2,
      "pushedAt": "2023-01-31T01:09:00Z",
      "archived": false,
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        "date": "2022-04-21T18:30:40Z",
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    "bioportal": null,
    "citations": [],
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      "tagDates": [
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    "tib": null,
    "dashboard": null,
    "quality": null,
    "oops": null,
    "releases": {
      "dates": [
        "2022-01-14",
        "2022-04-21"
      ],
      "lastYear": 0,
      "from": "GitHub releases"
    },
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      "prefix": "sddo",
      "name": "Science Data Discovery Ontology",
      "mappings": {},
      "dependsOn": [],
      "appearsIn": [],
      "license": "CC-BY-3.0",
      "version": null,
      "deprecated": false,
      "page": "https://bioregistry.io/sddo",
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      "fetchedAt": "2026-10-26T03:20:49.685Z"
    },
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      "versionInfo": "2023-01-31",
      "etag": "\"befbb7389700460df4f1575e92f5313dbef7f009a0f7750b6c83b04457941e88\"",
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      "fetchedAt": "2026-10-26T03:20:50.334Z"
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    "gross": 30,
    "earned": 30,
    "possible": 100,
    "qualityApplies": true,
    "penalty": {
      "score": -11,
      "reason": "3.7 years → 4 × max(0, 3.7 − 1)",
      "steps": [
        {
          "label": "Time since last activity",
          "pts": -11,
          "detail": "3.7 years → 4 × max(0, 3.7 − 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": "E",
    "fair": 30,
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        "score": 1,
        "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": 1,
            "max": 5,
            "detail": "1: Bioregistry"
          },
          {
            "label": "Citable reference (F2)",
            "pts": 0,
            "max": 3,
            "detail": "no reference publication listed"
          }
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          "Persistent identifier (F1): no PURL / w3id / DOI for the artefact",
          "Indexed in services (F4): 1: Bioregistry",
          "Citable reference (F2): no reference publication listed"
        ]
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        "score": 12,
        "max": 12,
        "steps": [
          {
            "label": "Homepage reachable",
            "pts": 3,
            "max": 3,
            "detail": "HTTP 200"
          },
          {
            "label": "Artefact retrievable over HTTP(S) (A1)",
            "pts": 6,
            "max": 6,
            "detail": "download HTTP 200"
          },
          {
            "label": "Metadata persists in a registry (A2)",
            "pts": 3,
            "max": 3,
            "detail": "Bioregistry"
          }
        ],
        "notes": []
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      "interoperable": {
        "score": 8,
        "max": 12,
        "steps": [
          {
            "label": "Formal machine-readable format (I1)",
            "pts": 5,
            "max": 5,
            "detail": "OWL, OBO"
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          {
            "label": "Semantic-web IRIs (I2)",
            "pts": 3,
            "max": 3,
            "detail": "OWL, OBO"
          },
          {
            "label": "References other vocabularies (I3)",
            "pts": 0,
            "max": 4,
            "detail": "no imported vocabularies found"
          }
        ],
        "notes": [
          "References other vocabularies (I3): no imported vocabularies found"
        ]
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      "reusable": {
        "score": 9,
        "max": 12,
        "steps": [
          {
            "label": "Clear license (R1.1)",
            "pts": 5,
            "max": 5,
            "detail": "CC BY 3.0"
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          {
            "label": "Release provenance (R1.2)",
            "pts": 4,
            "max": 4,
            "detail": "2023-01-31 (version IRI in the artefact)"
          },
          {
            "label": "Community standards (R1.3)",
            "pts": 0,
            "max": 3,
            "detail": "no independent compliance report (not on the OBO Dashboard)"
          }
        ],
        "notes": [
          "Community standards (R1.3): no independent compliance report (not on the OBO Dashboard)"
        ]
      },
      "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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        "notes": [
          "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": 0,
        "max": 16,
        "steps": [
          {
            "label": "Recency",
            "pts": 0,
            "max": 10,
            "detail": "2023-01-31 → 44.8 months (older / unknown)"
          },
          {
            "label": "Release cadence (12 months)",
            "pts": 0,
            "max": 6,
            "detail": "0 releases (GitHub releases)"
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          "Recency: 2023-01-31 → 44.8 months (older / unknown)",
          "Release cadence (12 months): 0 releases (GitHub releases)"
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        "max": 16,
        "steps": [
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            "label": "Documented adopting projects",
            "pts": 0,
            "max": 7,
            "detail": "0 projects"
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            "label": "Reused by other ontologies",
            "pts": 0,
            "max": 4,
            "detail": "0"
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          {
            "label": "Community signal",
            "pts": 0,
            "max": 5,
            "detail": "max(stars 2 → 0, citations 0 → 0)"
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