{
  "@context": {
    "@version": 1.1,
    "ind": "https://api-evangelist.github.io/industrial/schema/",
    "schema": "https://schema.org/",
    "dcterms": "http://purl.org/dc/terms/",
    "xsd": "http://www.w3.org/2001/XMLSchema#",
    "sosa": "http://www.w3.org/ns/sosa/",
    "ssn": "http://www.w3.org/ns/ssn/",
    "qudt": "http://qudt.org/schema/qudt/",

    "IndustrialAsset": "ind:IndustrialAsset",
    "IndustrialTelemetryReading": "sosa:Observation",
    "MaintenanceOrder": "ind:MaintenanceOrder",
    "ProductionRun": "ind:ProductionRun",

    "asset_id": "schema:identifier",
    "reading_id": "schema:identifier",
    "name": "schema:name",
    "description": "schema:description",

    "asset_type": {
      "@id": "ind:assetType",
      "@type": "xsd:string"
    },
    "parent_asset_id": {
      "@id": "ind:parentAssetId",
      "@type": "xsd:string"
    },
    "site": {
      "@id": "ind:site",
      "@type": "xsd:string"
    },
    "manufacturer": "schema:manufacturer",
    "model": "schema:model",
    "serial_number": "schema:serialNumber",
    "installed_at": {
      "@id": "ind:installedAt",
      "@type": "xsd:dateTime"
    },
    "criticality": {
      "@id": "ind:criticality",
      "@type": "xsd:string"
    },
    "status": {
      "@id": "ind:status",
      "@type": "xsd:string"
    },
    "tags": {
      "@id": "schema:keywords",
      "@container": "@set",
      "@type": "xsd:string"
    },
    "protocols": {
      "@id": "ind:protocols",
      "@container": "@set",
      "@type": "xsd:string"
    },

    "metric": {
      "@id": "sosa:observedProperty",
      "@type": "xsd:string"
    },
    "value": {
      "@id": "sosa:hasSimpleResult"
    },
    "unit": {
      "@id": "qudt:unit",
      "@type": "xsd:string"
    },
    "quality": {
      "@id": "ind:quality",
      "@type": "xsd:string"
    },
    "timestamp": {
      "@id": "sosa:resultTime",
      "@type": "xsd:dateTime"
    },
    "source_protocol": {
      "@id": "ind:sourceProtocol",
      "@type": "xsd:string"
    },
    "gateway_id": {
      "@id": "ind:gatewayId",
      "@type": "xsd:string"
    },
    "namespace": {
      "@id": "ind:namespace",
      "@type": "xsd:string"
    },

    "work_order_id": {
      "@id": "ind:workOrderId",
      "@type": "xsd:string"
    },
    "run_id": {
      "@id": "ind:runId",
      "@type": "xsd:string"
    },
    "priority": {
      "@id": "ind:priority",
      "@type": "xsd:string"
    },
    "asset": {
      "@id": "ind:asset",
      "@type": "@id"
    }
  }
}