{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:openfdd:schema:ofdd_engineering_quantities_v1",
  "title": "Open-FDD engineering quantity record (ofdd_engineering_quantities_v1)",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "quantity_id",
    "property",
    "numeric_value",
    "unit_code",
    "quantity_kind",
    "value_basis",
    "source_type"
  ],
  "properties": {
    "schema_version": {
      "type": "string",
      "const": "ofdd_engineering_quantities_v1"
    },
    "quantity_id": { "type": "string", "minLength": 1 },
    "equipment_id": { "type": "string" },
    "building_id": { "type": "string" },
    "tenant_id": { "type": "string" },
    "property": {
      "type": "string",
      "enum": [
        "ratedCoolingCapacity",
        "ratedHeatingCapacity",
        "ratedFuelInputPower",
        "ratedElectricalInputPower",
        "ratedShaftPower",
        "designSupplyAirflow",
        "designOutdoorAirflow",
        "designWaterFlow",
        "designExternalStaticPressure",
        "designPumpHead",
        "ratedCOP",
        "ratedEER",
        "ratedThermalEfficiency"
      ]
    },
    "numeric_value": { "type": "number" },
    "unit_code": { "type": "string", "minLength": 1 },
    "quantity_kind": {
      "type": "string",
      "enum": [
        "ThermalPower",
        "ElectricalPower",
        "ShaftPower",
        "VolumeFlow",
        "Pressure",
        "Efficiency",
        "Energy",
        "CoolingLoad"
      ]
    },
    "value_basis": {
      "type": "string",
      "enum": ["Design", "Rated", "TAB", "Measured", "Assumed"]
    },
    "source_type": { "type": "string", "minLength": 1 },
    "source_reference": { "type": "string" },
    "source_locator": { "type": "string" },
    "review_status": {
      "type": "string",
      "enum": ["NeedsReview", "Reviewed", "Rejected"]
    },
    "notes": { "type": "string" }
  }
}