{
  "title": "Hardware manufacturing data for AI handed-pair checks",
  "source_page": "https://fiund.com/industries/hardware-hinge-handed-pair-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "Correct two leaves, wrong relative handing",
    "context": "An owned hinge drawing uses paper leaves and unequal hole patterns.",
    "records": [
      [
        "1",
        "Drawing",
        "With pin up and tabs facing viewer, leaf A's two-hole pattern goes left; B's three-hole pattern goes right."
      ],
      [
        "2",
        "Bench image",
        "Pin up, tabs face viewer; A on right and B on left."
      ],
      [
        "3",
        "Pack count",
        "One A and one B in the kit."
      ]
    ],
    "question": "Is the issue missing parts or assembly orientation?",
    "answer": "Record 3 supports a complete pair by identity. Under the viewing frame in records 1 and 2, the leaves are swapped left to right, so report an orientation discrepancy. Keep the evidence about part count separate from evidence about how the parts were paired.",
    "failureModes": [
      "Treating a complete parts kit as a correctly oriented assembly",
      "Determining handedness without the specified viewpoint"
    ],
    "fields": [
      [
        "viewing_frame",
        "Stabilizes handedness"
      ],
      [
        "leaf_pattern",
        "Identifies A and B by features"
      ],
      [
        "relative_position",
        "Shows arrangement of the pair"
      ]
    ],
    "holdout": "Use the reverse view of a correctly assembled pair; require applying the viewpoint before flagging a swap.",
    "boundary": "No real hardware fit, installation guidance, customer designs or load claims."
  }
}