{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "properties": {
    "catalog": {
      "type": "string"
    },
    "version": {
      "type": "string"
    },
    "categories": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "category": {
            "type": "string"
          },
          "version": {
            "type": "string"
          },
          "instances": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "name": {
                  "type": "string"
                },
                "type": {
                  "type": "string"
                },
                "mapping": {
                  "type": "string"
                },
                "aliases": {
                  "type": "array",
                  "items": {
                    "type": "string"
                  }
                },
                "creationDate": {
                  "type": "string",
                  "format": "date-time"
                },
                "creationBy": {
                  "type": "string"
                }
              },
              "required": ["name", "type", "mapping", "aliases", "creationDate", "creationBy"]
            }
          }
        },
        "required": ["category", "version", "instances"]
      }
    }
  },
  "required": ["catalog", "version", "categories"]
}