{
  "$schema": "http://json-schema.org/schema",
  "$schemaVersion": "0.0.2",
  "$id": "https://smart-data-models.github.io/dataModel.DataQuality/DataQualityAssessment/schema.json",
  "title": "Smart Data Models - Data Quality Assessment schema",
  "modelTags": "",
  "derivedFrom": "",
  "license": "https://smart-data-models.github.io/dataModel.DataQuality/DataQualityAssessment/LICENSE.md",
  "description": "This entity describes the data quality properties of a measurement, such as temperature.",
  "type": "object",
  "required": [
    "id",
    "type"
  ],
  "allOf": [
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
    },
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
    },
    {
    "properties": {
      "type": {
        "type": "string",
        "enum": [
          "DataQualityAssessment"
        ],
        "description": "Property. NGSI Entity type. It has to be DataQualityAssessment"
      },
      "dateCalculated": {
        "type": "string",
        "format": "date-time",
        "description": "Property. Date of the calculated entity defined by the user."
      },
      "outlier": {
        "type": "object",
        "description": "Property. Includes information about the outlier characteristics of the measurement.",
        "properties": {
          "isOutlier": {
            "type": "boolean",
            "description": "Property. Determine whether the measurement has been considered an outlier or not."
          },
          "methodology": {
            "anyOf": [
              {
                "type": "string",
                "minLength": 1,
                "maxLength": 256,
                "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
                "description": "Property. Identifier format of any NGSI entity"
              },
              {
                "type": "string",
                "format": "uri",
                "description": "Property. Identifier format of any NGSI entity"
              }
            ],
            "description": "Relationship. Reference to the other entity including AI methodology information."
          }
        } 
      },
      "synthetic": {
        "type": "object",
        "description": "Property. Includes information about the origin of the measurement.",
        "properties": {
          "isSynthetic": {
            "type": "boolean",
            "description": "Property. Determine whether the measurement has been created synthetically or not."
          },
          "methodology": {
            "anyOf": [
              {
                "type": "string",
                "minLength": 1,
                "maxLength": 256,
                "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
                "description": "Property. Identifier format of any NGSI entity"
              },
              {
                "type": "string",
                "format": "uri",
                "description": "Property. Identifier format of any NGSI entity"
              }
            ],
            "description": "Relationship. Reference to the other entity including AI methodology information."
          }
        } 
      },
      "accuracy": {
        "type": "number",
        "description": "Property. Accuracy measures the maximum systematic numerical error produced in a sensor measurement."
      },
      "timeliness": {
        "type": "number",
        "description": "Property. Average timeliness of the data-stream. Units:'minutes'."
      },
      "completeness": {
        "type": "number",
        "minimum": 0,
        "maximum": 1,
        "description": "Property. Completeness quantifies the number of missed measurements or observations in a given time window. Units:'P1'."
      },
      "precision": {
        "type": "number",
        "description": "Property. Precision measures the standard deviation of a dataset. That is, it measures how close the values in the dataset are to each other."
      }
    }
  }
  ]
}