{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$schemaVersion": "0.1.0",
  "modelTags": "",
  "$id": "https://smart-data-models.github.io/dataModel.Device/DeviceMeasurement/schema.json",
  "title": "Smart Data models - Measurement schema,",
  "description": "Description of a generic measurement entity coming from a device or other data source.",
  "type": "object",
  "required": [
    "id",
    "type"
  ],
  "allOf": [
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
    },
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
    },
    {
      "properties": {
        "type": {
          "type": "string",
          "description": "Property. NGSI Entity type. It has to be Measurement",
          "enum": [
            "DeviceMeasurement"
          ]
        },
        "numValue": {
          "type": "number",
          "description": "Property. Model:'https://schema.org/Number'. Numerical value of the measurement"
        },
        "textValue": {
          "type": "string",
          "description": "Property. Model:'https://schema.org/Text'. Textual value of the measurement"
        },
        "controlledProperty": {
          "type": "string",
          "description": "Property. Model:'https://schema.org/Text'. Property being measured by the device"
        },
        "refDevice": {
          "anyOf": [
            {
              "type": "string",
              "minLength": 1,
              "maxLength": 256,
              "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
              "description": "Property. Identifier format of any NGSI entity"
            },
            {
              "type": "string",
              "format": "uri",
              "description": "Property. Identifier format of any NGSI entity"
            }
          ],
          "description": "Relationship. Device taking the measurement"
        },
        "deviceType": {
          "type": "string",
          "description": "Property. Model:'https://schema.org/Text'. Type of device taking the measurement"
        },
        "measurementType": {
          "type": "string",
          "description": "Property. The type of measurement to be taken"
        },
        "dateObserved": {
          "type": "string",
          "format": "date-time",
          "description": "Property. Model:'https://schema.org/Text'. The date and time of this observation in ISO8601 UTC format"
        },
        "outlier": {
          "type": "boolean",
          "description": "Property. Model:'https://schema.org/Boolean'. Value for marking the measurement to be specially processed"
        },
        "unit": {
          "type": "string",
          "description": "Property. Units of the measurement. In case of use of an acronym use units accepted in [CEFACT](https://www.unece.org/cefact.html) code"
        }
      }
    }
  ]
}