{
  "name": "AltruistiqProductStructure",
  "description": "Structure documentation for an Altruistiq Product Structure (bill of materials) and its Inputs.",
  "entities": {
    "ProductStructure": {
      "description": "A versioned bill of materials for a Product.",
      "fields": {
        "id": "string — structure identifier",
        "productId": "string — parent Product identifier",
        "name": "string — structure label",
        "version": "string — structure version",
        "validFrom": "date — start of validity",
        "validTo": "date — end of validity (nullable)",
        "inputs": "array<ProductStructureInput> — material and packaging line items"
      }
    },
    "ProductStructureInput": {
      "description": "A single material, packaging, or process line item in a Product Structure.",
      "fields": {
        "id": "string — input identifier",
        "structureId": "string — parent structure identifier",
        "type": "string — input type (ingredient, packaging, energy, transport, process)",
        "materialName": "string — human-readable material",
        "quantity": "number — quantity per functional unit",
        "unit": "string — unit of measure",
        "originCountry": "string — ISO 3166-1 alpha-2",
        "supplierId": "string — supplier reference",
        "emissionFactorId": "string — applied emission factor"
      }
    }
  },
  "relationships": [
    "Product 1 — * ProductStructure",
    "ProductStructure 1 — * ProductStructureInput",
    "Facility — * ProductStructureInput (origin facility)"
  ]
}