{
  "$id": "https://schemas.opendd.eu/xtdconcept.1.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "xtd Concept Schema",
  "description": "According to SS-EN ISO 12006-3:2022",
  "type": "object",
  "properties": {
    "LanguageOfCreator": {
      "description": "Language of the creator of the concept.",
      "oneOf": [
        {
          "$ref": "/xtdlanguage.1.schema.json"
        },
        {
          "$ref": "/opendd-entityref.1.schema.json"
        }
      ]
    },
    "Definition": {
      "type": "object",
      "description": "A list of instances of xtdMultiLanguageText that holds the definition of the concept in several languages.",
      "oneOf": [
        {
          "$ref": "/xtdmultilanguagetext.1.schema.json"
        },
        {
          "$ref": "/opendd-entityref.1.schema.json"
        }
      ]
    },
    "Descriptions": {
      "type": "array",
      "description": "A list of instances of xtdMultiLanguageText that holds descriptions of the concept in several languages.",
      "items": {
        "oneOf": [
          {
            "$ref": "/xtdmultilanguagetext.1.schema.json"
          },
          {
            "$ref": "/opendd-entityref.1.schema.json"
          }
        ]
      }
    },
    "SimilarTo": {
      "description": "Used to link similar concepts.",
      "type": "array",
      "items": {
        "$ref": "/opendd-entityref.1.schema.json"
      }
    },
    "ReferenceDocuments": {
      "type": "array",
      "description": "List of attached reference documents.",
      "items": {
        "$ref": "/opendd-entityref.1.schema.json"
      }
    },
    "VisualRepresentations": {
      "type": "array",
      "description": "Visual representation of the concept through sketches, photos, videos or other multimedia objects.",
      "items": {
        "$ref": "/opendd-entityref.1.schema.json"
      }
    }
  },
  "required": [
    "Definition",
    "LanguageOfCreator"
  ]
}