{
  "name": "SRS Ontology",
  "abstract": "Building blocks for implementation of the OGC SRS ontology",
  "description": "Each building block defines a reusable JSON schema that is mapped to the equivalent SRS Ontology concept.\n\nEach fragment allows for transparent and validatable use of JSON-LD contexts to map schema elements to equivalent terms from the GeoSPARQL ontology. \n\n _These components are under review by the GeoSPARQL SWG as candidate canonical implementations._ \n\n Each building block allows for examples transformed to RDF, which in turn allows for the use of SHACL rules to enforce the semantics of the GeoSPARQL specifications.\n",
  "modified": "2026-07-21T13:18:50.982513",
  "tooling": {
    "bblocks-postprocess": {
      "commitId": "\"782e6be7338edb48ec5ec9a0c1d7f8df22df5ca0",
      "shortCommitId": "\"782e6b",
      "date": "2026-07-10T07:19:45+00:00\""
    }
  },
  "gitRepository": "https://github.com/opengeospatial/ontology-crs",
  "gitHubRepository": "https://github.com/opengeospatial/ontology-crs/blob/master/",
  "baseURL": "https://opengeospatial.github.io/ontology-crs/",
  "viewerURL": "https://opengeospatial.github.io/ontology-crs/bblocks/",
  "validationReport": "https://opengeospatial.github.io/ontology-crs/build/tests/report.html",
  "validationReportJson": "https://opengeospatial.github.io/ontology-crs/build/tests/report.json",
  "imports": [
    "https://opengeospatial.github.io/bblocks/register.json"
  ],
  "bblocks": [
    {
      "itemIdentifier": "ogc.geosrs.app",
      "$schema": "metaschema.yaml",
      "name": "SRS Ontology - Application module",
      "highlighted": true,
      "abstract": "A building block defining SRS Ontology Application Module",
      "status": "under-development",
      "dateTimeAddition": "2023-04-05T00:00:00Z",
      "itemClass": "model",
      "register": "geosrs",
      "version": "0.1",
      "dateOfLastChange": "2026-07-21",
      "sources": [
        {
          "title": "Spec Section",
          "link": "https://opengeospatial.github.io/ontology-crs/spec/documents/spec/document.html#srsapplication"
        }
      ],
      "maturity": "mature",
      "scope": "unstable",
      "tags": [
        "geosrs"
      ],
      "shaclShapes": {},
      "sourceFiles": "https://opengeospatial.github.io/ontology-crs/_sources/app/",
      "validationPassed": true,
      "testOutputs": "https://github.com/opengeospatial/ontology-crs/blob/master/build/tests/geosrs/app/",
      "documentation": {
        "json-full": {
          "mediatype": "application/json",
          "url": "https://opengeospatial.github.io/ontology-crs/build/generateddocs/json-full/geosrs/app/index.json"
        },
        "markdown": {
          "mediatype": "text/markdown",
          "url": "https://opengeospatial.github.io/ontology-crs/build/generateddocs/markdown/geosrs/app/index.md"
        },
        "bblocks-viewer": {
          "mediatype": "text/html",
          "url": "https://opengeospatial.github.io/ontology-crs/bblocks/bblock/ogc.geosrs.app"
        }
      }
    },
    {
      "itemIdentifier": "ogc.geosrs.co",
      "$schema": "metaschema.yaml",
      "name": "SRS Ontology - Coordinate Operation module",
      "highlighted": true,
      "abstract": "A building block defining SRS Ontology Coordinate Operation Module",
      "status": "under-development",
      "dateTimeAddition": "2023-04-05T00:00:00Z",
      "itemClass": "model",
      "register": "geosrs",
      "version": "0.1",
      "requirementClasses": [
        "/req/co/Coordinate_Operation_Categories",
        "/req/co/Coordinate_Operation_Methods",
        "/req/co/Coordinate_Operation_Parameters",
        "/req/co/Coordinate_Operation_Properties"
      ],
      "dateOfLastChange": "2026-07-21",
      "sources": [
        {
          "title": "Spec Section",
          "link": "https://opengeospatial.github.io/ontology-crs/spec/documents/spec/document.html#co"
        }
      ],
      "maturity": "mature",
      "scope": "unstable",
      "tags": [
        "geosrs"
      ],
      "shaclShapes": {},
      "ontology": "https://opengeospatial.github.io/ontology-crs/build/annotated/geosrs/co/ontology.ttl",
      "sourceFiles": "https://opengeospatial.github.io/ontology-crs/_sources/co/",
      "validationPassed": true,
      "testOutputs": "https://github.com/opengeospatial/ontology-crs/blob/master/build/tests/geosrs/co/",
      "documentation": {
        "json-full": {
          "mediatype": "application/json",
          "url": "https://opengeospatial.github.io/ontology-crs/build/generateddocs/json-full/geosrs/co/index.json"
        },
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        },
        "bblocks-viewer": {
          "mediatype": "text/html",
          "url": "https://opengeospatial.github.io/ontology-crs/bblocks/bblock/ogc.geosrs.co"
        }
      }
    },
    {
      "itemIdentifier": "ogc.geosrs.cs",
      "$schema": "metaschema.yaml",
      "name": "SRS Ontology - Coordinate System module",
      "highlighted": true,
      "abstract": "A building block defining SRS Ontology Coordinate System Module",
      "status": "under-development",
      "dateTimeAddition": "2023-04-05T00:00:00Z",
      "itemClass": "model",
      "register": "geosrs",
      "requirementClasses": [
        "/req/cs/3D_Coordinate_Systems",
        "/req/cs/Celestial_Coordinate_Systems",
        "/req/cs/Coordinate_System_Components",
        "/req/cs/Coordinate_System_Properties",
        "/req/cs/Coordinate_System_Types",
        "/req/cs/Temporal_Coordinate_Systems"
      ],
      "version": "0.1",
      "dateOfLastChange": "2026-07-21",
      "sources": [
        {
          "title": "Spec Section",
          "link": "https://opengeospatial.github.io/ontology-crs/spec/documents/spec/document.html#cs"
        }
      ],
      "maturity": "mature",
      "scope": "unstable",
      "tags": [
        "geosrs"
      ],
      "shaclShapes": {
        "ogc.geosrs.cs": [
          "https://opengeospatial.github.io/ontology-crs/_sources/cs/rules.shacl"
        ]
      },
      "ontology": "https://opengeospatial.github.io/ontology-crs/build/annotated/geosrs/cs/ontology.ttl",
      "sourceFiles": "https://opengeospatial.github.io/ontology-crs/_sources/cs/",
      "validationPassed": false,
      "testOutputs": "https://github.com/opengeospatial/ontology-crs/blob/master/build/tests/geosrs/cs/",
      "documentation": {
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        },
        "markdown": {
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          "url": "https://opengeospatial.github.io/ontology-crs/build/generateddocs/markdown/geosrs/cs/index.md"
        },
        "bblocks-viewer": {
          "mediatype": "text/html",
          "url": "https://opengeospatial.github.io/ontology-crs/bblocks/bblock/ogc.geosrs.cs"
        }
      }
    },
    {
      "itemIdentifier": "ogc.geosrs.datum",
      "$schema": "metaschema.yaml",
      "name": "SRS Ontology - Datum module",
      "highlighted": true,
      "abstract": "A building block defining SRS Ontology Datum Module",
      "status": "under-development",
      "dateTimeAddition": "2023-04-05T00:00:00Z",
      "itemClass": "model",
      "register": "geosrs",
      "requirementClasses": [
        "/req/datum/Datum_Parameters",
        "/req/datum/Datum_Properties",
        "/req/datum/Datum_Types",
        "/req/datum/Spheroid_Properties",
        "/req/datum/Spheroid_Types"
      ],
      "version": "0.1",
      "dateOfLastChange": "2026-07-21",
      "sources": [
        {
          "title": "Spec Section",
          "link": "https://opengeospatial.github.io/ontology-crs/spec/documents/spec/document.html#datum"
        }
      ],
      "maturity": "mature",
      "scope": "unstable",
      "tags": [
        "geosrs"
      ],
      "shaclShapes": {
        "ogc.geosrs.datum": [
          "https://opengeospatial.github.io/ontology-crs/_sources/datum/rules.shacl"
        ]
      },
      "ontology": "https://opengeospatial.github.io/ontology-crs/build/annotated/geosrs/datum/ontology.ttl",
      "sourceFiles": "https://opengeospatial.github.io/ontology-crs/_sources/datum/",
      "validationPassed": false,
      "testOutputs": "https://github.com/opengeospatial/ontology-crs/blob/master/build/tests/geosrs/datum/",
      "documentation": {
        "json-full": {
          "mediatype": "application/json",
          "url": "https://opengeospatial.github.io/ontology-crs/build/generateddocs/json-full/geosrs/datum/index.json"
        },
        "markdown": {
          "mediatype": "text/markdown",
          "url": "https://opengeospatial.github.io/ontology-crs/build/generateddocs/markdown/geosrs/datum/index.md"
        },
        "bblocks-viewer": {
          "mediatype": "text/html",
          "url": "https://opengeospatial.github.io/ontology-crs/bblocks/bblock/ogc.geosrs.datum"
        }
      }
    },
    {
      "itemIdentifier": "ogc.geosrs.planet",
      "$schema": "metaschema.yaml",
      "name": "SRS Ontology - Planet module",
      "highlighted": true,
      "abstract": "A building block defining SRS Ontology Planet Module",
      "status": "under-development",
      "dateTimeAddition": "2023-04-05T00:00:00Z",
      "itemClass": "model",
      "register": "geosrs",
      "version": "0.1",
      "dateOfLastChange": "2026-07-21",
      "sources": [
        {
          "title": "Spec Section",
          "link": "https://opengeospatial.github.io/ontology-crs/spec/documents/spec/document.html#planet"
        }
      ],
      "maturity": "mature",
      "scope": "unstable",
      "tags": [
        "geosrs"
      ],
      "shaclShapes": {},
      "ontology": "https://opengeospatial.github.io/ontology-crs/build/annotated/geosrs/planet/ontology.ttl",
      "sourceFiles": "https://opengeospatial.github.io/ontology-crs/_sources/planet/",
      "validationPassed": true,
      "testOutputs": "https://github.com/opengeospatial/ontology-crs/blob/master/build/tests/geosrs/planet/",
      "documentation": {
        "json-full": {
          "mediatype": "application/json",
          "url": "https://opengeospatial.github.io/ontology-crs/build/generateddocs/json-full/geosrs/planet/index.json"
        },
        "markdown": {
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          "url": "https://opengeospatial.github.io/ontology-crs/build/generateddocs/markdown/geosrs/planet/index.md"
        },
        "bblocks-viewer": {
          "mediatype": "text/html",
          "url": "https://opengeospatial.github.io/ontology-crs/bblocks/bblock/ogc.geosrs.planet"
        }
      }
    },
    {
      "itemIdentifier": "ogc.geosrs.projection",
      "$schema": "metaschema.yaml",
      "name": "SRS Ontology - Projection module",
      "highlighted": true,
      "abstract": "A building block defining SRS Ontology Projection Module",
      "status": "under-development",
      "dateTimeAddition": "2023-04-05T00:00:00Z",
      "itemClass": "model",
      "register": "geosrs",
      "requirementClasses": [
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        "/req/projections/Azimuthal_Projections",
        "/req/projections/Compromise_Projections",
        "/req/projections/Conformal_Projections",
        "/req/projections/Conical_Projections",
        "/req/projections/Cylindrical_Projections",
        "/req/projections/Equal_Area_Projections",
        "/req/projections/Equidistant_Projections",
        "/req/projections/Globular_Projections",
        "/req/projections/Lenticular_Projections",
        "/req/projections/Minimum_Error_Projections",
        "/req/projections/Perspective_Projections",
        "/req/projections/Polyconic_Projections",
        "/req/projections/Polyhedral_Projections",
        "/req/projections/Projection",
        "/req/projections/Pseudo_Azimuthal_Projections",
        "/req/projections/Pseudo_Conical_Projections",
        "/req/projections/Pseudo_Cylindrical_Projections",
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      ],
      "version": "0.1",
      "dateOfLastChange": "2026-07-21",
      "sources": [
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          "link": "https://opengeospatial.github.io/ontology-crs/spec/documents/spec/document.html#projection"
        }
      ],
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      "scope": "unstable",
      "tags": [
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      ],
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      },
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      "sourceFiles": "https://opengeospatial.github.io/ontology-crs/_sources/srs/",
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  ],
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      "type": "application/json",
      "title": "This Building Blocks Register in JSON format"
    },
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      "href": "https://opengeospatial.github.io/ontology-crs/build/bblocks.ttl",
      "type": "text/turtle",
      "title": "This Building Blocks Register in RDF Turtle format"
    },
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      "rel": "self",
      "href": "https://opengeospatial.github.io/ontology-crs/build/bblocks.jsonld",
      "type": "application/ld+json",
      "title": "This Building Blocks Register in JSON-LD format"
    }
  ]
}