{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "description": "bill of quantities summary page listing each work-section bill and its total, plus the project grand total",
  "properties": {
    "projectName": {
      "type": "string",
      "description": "the project or plot identifier the bill of quantities is for."
    },
    "bills": {
      "type": "array",
      "description": "each work-section bill listed in the summary, with its number, name, and total. exclude the project grand total row.",
      "items": {
        "type": "object",
        "properties": {
          "billNumber": {
            "type": "number",
            "description": "the bill number as printed (e.g. 1, 2, 3)."
          },
          "billName": {
            "type": "string",
            "description": "the bill / work-section name exactly as printed."
          },
          "amount": {
            "type": "number",
            "description": "the bill total amount, numeric only without currency symbol or thousands separators."
          }
        }
      }
    },
    "grandTotal": {
      "type": "number",
      "description": "the project grand total exclusive of credits, adjustments and VAT, numeric only."
    }
  }
}