release-schema.json

{
  "definitions": {
    "Item": {
      "properties": {
        "unit": {
          "description": "A description of the unit in which the supplies, services or works are provided (e.g. hours, kilograms) and the unit-price. For comparability, an established list of units can be used.  ",
          "properties": {
            "scheme": {
              "title": "Scheme",
              "description": "The list from which units of measure identifiers are taken. This should be an entry in the unitClassificationScheme codelist. Use of the scheme 'UNCEFACT' for the UN/CEFACT Recommendation 20 list of 'Codes for Units of Measure Used in International Trade' is recommended.   ",
              "type": [
                "string",
                "null"
              ],
              "codelist": "unitClassificationScheme.csv",
              "openCodelist": true
            },
            "id": {
              "title": "ID",
              "description": "The identifier from the codelist referenced in the schema property. For example, with UNCEFACT, this is the value of the 'Common Code' column. From this identifier, applications can look-up the human readable name or symbol for this unit of measure. ",
              "type": [
                "string",
                "null"
              ]
            },
            "uri": {
              "title": "URI",
              "description": "If the scheme used provide a machine-readable URI for this unit of measure, this can be given.",
              "type": [
                "string",
                "null"
              ],
              "format": "uri"
            }
          }
        }
      }
    }
  }
}