{
  "title": "Concrete pipe inspection records for AI traceability",
  "source_page": "https://fiund.com/industries/concrete-pipe-inspection-traceability-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A joint observation tied to one end",
    "context": "Two paper cylinders use fictional orientation marks. The reviewer locates a visible observation without judging fitness.",
    "records": [
      [
        "1",
        "Pipe register",
        "P7 has socket end S and spigot end G."
      ],
      [
        "2",
        "Photo",
        "A chip-like shape sits next to G marker; S not shown."
      ],
      [
        "3",
        "Inspection index",
        "Previous entry concerns socket end of P7 only."
      ]
    ],
    "question": "Which inspection region should receive the new observation?",
    "answer": "Associate the visible shape with P7's spigot end G using records 1 and 2. The socket entry in record 3 remains a separate observation and cannot classify G. No conclusion follows about the unpictured socket or the cause and significance of the shape.",
    "failureModes": [
      "Using pipe-level identity for all joint observations",
      "Copying a prior socket finding to the spigot"
    ],
    "fields": [
      [
        "pipe_id",
        "Identifies the specimen"
      ],
      [
        "end_designation",
        "Distinguishes inspection regions"
      ],
      [
        "coverage_status",
        "Tracks unpictured ends"
      ]
    ],
    "holdout": "Present a cropped end photo without an orientation mark; require a reliable differentiator before selecting S or G.",
    "boundary": "No actual pipe dimensions, installation, structural conclusions or customer inspection reports."
  }
}