{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "description": "Abstract base class for all data components",
  "type": "object",
  "allOf": [
    {
      "$ref": "./AbstractSweIdentifiable.json"
    },
    {
      "properties": {
        "type": {
          "type": "string"
        },
        "updatable": {
          "description": "Specifies if the value of a data component can be updated externally (i.e. is variable)",
          "type": "boolean",
          "default": false
        },
        "optional": {
          "description": "Specifies if the data for this component can be omitted in the datastream",
          "type": "boolean",
          "default": false
        },
        "definition": {
          "description": "The definition of the property whose value is provided by this component (semantic link)",
          "type": "string",
          "format": "uri"
        }
      }
    }
  ]
}