{
  "title": "Bare printed circuit board inspection data for AI",
  "source_page": "https://fiund.com/industries/bare-pcb-inspection-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A board indication survives image rotation",
    "context": "Original paper board geometry has a square corner and labeled test cells; no circuit design is present.",
    "records": [
      [
        "1",
        "Board map",
        "Reference square fixes the top-left in board coordinates; feature P4 at row 2, column 3."
      ],
      [
        "2",
        "AOI record",
        "Image rotated; candidate tied to board row 2, column 3."
      ],
      [
        "3",
        "Reviewer note",
        "Visible feature at P4 classified as intended printed dot."
      ]
    ],
    "question": "How should the candidate and reviewer label be stored?",
    "answer": "Keep the candidate at board cell 2/3 and link the P4 reviewer decision using records 1–3. The rotation changes image pixels but not the board key. Preserve the automated indication and the reviewed intended-dot label rather than counting a confirmed defect.",
    "failureModes": [
      "Using pixel row and column as stable board coordinates",
      "Treating every automated candidate as verified"
    ],
    "fields": [
      [
        "board_cell",
        "Anchors indications to the fixture"
      ],
      [
        "image_transform",
        "Maps each frame to the board"
      ],
      [
        "review_decision",
        "Separates detection from confirmed label"
      ]
    ],
    "holdout": "Give the same coordinate on a revised board where P4 is removed; require matching layout revision first.",
    "boundary": "Original paper geometry only; no board design, vendor defects, test thresholds or real production images."
  }
}