{
  "title": "Alumina and primary aluminum data for AI material-basis review",
  "source_page": "https://fiund.com/industries/alumina-aluminum-material-basis-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "Do not add input and output masses together",
    "context": "An original cartoon material flow uses fictional accounting values and a separate intermediate stage.",
    "records": [
      [
        "1",
        "Receipt",
        "Input card R4 logs 100 toy mass units as received."
      ],
      [
        "2",
        "Flow map",
        "Intermediate I4 logs 60 units on a stated dry basis."
      ],
      [
        "3",
        "Output ledger",
        "Final lot O4 logs 20 units on final-product basis; no balance boundary documented."
      ]
    ],
    "question": "Can the three rows be used to calculate a process loss?",
    "answer": "No. Records 1–3 cover different stages and bases and do not give a complete mass-balance boundary. Preserve 100 as received, 60 on dry basis and 20 final-product units. A subtraction across those unlike fields would not identify a documented process loss.",
    "failureModes": [
      "Subtracting wet-basis and dry-basis figures directly",
      "Adding intermediate and final quantities as independent output"
    ],
    "fields": [
      [
        "material_stage",
        "Identifies input, intermediate and final"
      ],
      [
        "mass_basis",
        "Prevents comparing incompatible denominators"
      ],
      [
        "balance_boundary",
        "States which flows a calculation would need"
      ]
    ],
    "holdout": "Supply a complete toy boundary with a recycle stream; require counting the recycle only at its defined crossing.",
    "boundary": "Use fictional accounting only; exclude plant flow sheets, recovery claims and process parameters."
  }
}