cprt_schema = {
  "$id": "https://csrc.nist.rip/csrc/media/projects/cprt/documents/schema/cprt_schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "A representation of a set of cybersecurity elements from the NIST Cybersecurity and Privacy Reference Tool (CPRT).",
  "type": "object",
  "required":["documents","elements","relationship_types","relationships"],
  "properties": {
    "documents": {
      "type": "array",
      "items": { "$ref": "#/$defs/document" }
    },
    "elements":{
        "type":"array",
        "items": { "$ref": "#/$defs/element"}
    },
    "relationship_types":{
        "type":"array",
        "items": { "$ref": "#/$defs/relationship_type"}
    },
    "relationships":{
        "type":"array",
        "items": { "$ref": "#/$defs/relationship"}
    }
  },
  "$defs": {
    "document":{
        "type":"object",
        "required":["doc_identifier","name","version","website"],
        "properties":{
            "doc_identifier":{
                "type":"string",
                "description":"the short name of the document. This property will be used later."
            },
            "name":{
                "type":"string",
                "description":"the name of the document"
            },
            "version":{
                "type":"string",
                "description":"the string representation of the version of the document"
            },
            "website":{
                "type":"string",
                "description":"The URL of the document on the internet"
            }
        }
    },
    "element":{
        "type":"object",
        "required":["doc_identifier","element_type","element_identifier","title","text"],
        "properties":{
            "doc_identifier":{
                "type":"string",
                "description":"the short name of the related document"
            },
            "element_type":{
                "type":"string",
                "description":"The type of element as given by the related document."
            },
            "element_identifier":{
                "type":"string",
                "description":"the name of the element. This property might be the identifier that is given to the element by the given document like 'ID.AM-1' or 'S0009'. Default value is the string 'N/A'."
            },
            "title":{
                "type":"string",
                "description":"The title of the element. Some elements may not have titles e.g. ID.AM-1 or S0009. Default value is the string 'N/A'."
            },
            "text":{
                "type":"string",
                "description":"This field represents the text within an element."
            }
        }
    },
    "relationship_type":{
        "type":"object",
        "required":["relationship_identifier","description"],
        "properties":{
            "relationship_identifier":{
                "type":"string",
                "description":"The name of the relationship type."
            },
            "description":{
                "type":"string",
                "description":"The description of the relationship type."
            }
        }
    },
    "relationship":{
        "type":"object",
        "required":["source_element_identifier","source_doc_identifier","dest_element_identifier","dest_doc_identifier","provenance_doc_identifier","relationship_identifier"],
        "properties":{
            "source_element_identifier":{
                "type":"string",
                "description":"the business key of the element name which is the source element of the relationship"
            },
            "source_doc_identifier":{
                "type":"string",
                "description":"the business key of the document short name which contains the source element"
            },
            "dest_element_identifier":{
                "type":"string",
                "description":"the business key of the element name which is the destination element of the relationship"
            },
            "dest_doc_identifier":{
                "type":"string",
                "description":"the business key of the document short name which contains the destination element"
            },
            "provenance_doc_identifier":{
                "type":"string",
                "description":"the identifier of the provenance document which defined the relationship"
            },
            "relationship_identifier":{
                "type":"string",
                "description":"the identifier of the relationship type id which is represented in the relationship"
            }
        }
    }
  }
}