{
  "title": "Aircraft auxiliary-equipment data for AI assembly parentage",
  "source_page": "https://fiund.com/industries/aircraft-auxiliary-assembly-parentage-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A reused part type has two distinct instances",
    "context": "Fictional paper inventory represents two neutral assemblies and their subcomponent labels; no aircraft details appear.",
    "records": [
      [
        "1",
        "Register",
        "Parent A contains item I7 of type T; parent B contains item I8 of type T."
      ],
      [
        "2",
        "Transfer note",
        "I7 moved from A to quarantine shelf Q; I8 unchanged."
      ],
      [
        "3",
        "Query",
        "List current active instances of type T under each parent."
      ]
    ],
    "question": "How should the current parent map change?",
    "answer": "Remove I7 from A's active membership under record 2 but retain A as its prior parent. I8 remains under B from records 1 and 2. Shared type T does not move both instances, and the quarantine shelf is an administrative location rather than a disposition decision.",
    "failureModes": [
      "Updating all instances of a type after one transfer",
      "Discarding previous parentage"
    ],
    "fields": [
      [
        "instance_id",
        "Distinguishes physical instances"
      ],
      [
        "parent_interval",
        "Records membership across changes"
      ],
      [
        "location_status",
        "Represents the current mock placement"
      ]
    ],
    "holdout": "Reassign I7 to B in a separate event and preserve distinct arrival times for I7 and I8.",
    "boundary": "No aircraft component design, installation, location, real hardware or maintenance instructions."
  }
}