{
  "title": "Machine shop inspection data for visual quality control",
  "source_page": "https://fiund.com/industries/machine-shop-inspection-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "Keep a reflection and a reviewed surface mark distinct",
    "context": "Invented coupon images and reviewer records illustrate visual inspection evidence. They contain no customer designs, dimensions, process parameters or machine instructions.",
    "records": [
      [
        "COUPON-A",
        "Original image pair",
        "Two views show the same owned practice coupon. A bright streak changes position with the light."
      ],
      [
        "REVIEW-A",
        "Independent practice key",
        "The reviewer marks the changing streak as a reflection in the supplied exercise."
      ],
      [
        "COUPON-B",
        "Separate image pair",
        "A marked region remains at the same specimen location under both views."
      ],
      [
        "REVIEW-B",
        "Independent practice key",
        "The reviewer identifies the specified persistent surface mark on B, with its region reference."
      ]
    ],
    "question": "What reference distinction is supported, and how should image views be grouped for evaluation?",
    "answer": "The supplied reviewer keys distinguish A's changing reflection from B's persistent marked region. Both views of a coupon remain related observations of the same physical item. Keep them grouped before splitting the data, rather than use one angle for training and the other as an independent specimen test. These references classify the authored exercise; they do not certify an actual manufactured part.",
    "failureModes": [
      "Calling every bright streak a defect without its supporting review.",
      "Treating multiple angles of one coupon as independent held-out specimens."
    ],
    "fields": [
      [
        "Physical specimen",
        "Group views of the same coupon."
      ],
      [
        "Imaging condition",
        "Preserve the light and view change relevant to appearance."
      ],
      [
        "Region and reference label",
        "Connect a mark to the reviewed location and definition."
      ],
      [
        "Source authority",
        "Identify which test parts and images can be shared."
      ]
    ],
    "holdout": "Introduce a newly authored coupon and different lighting, with an independently checked key. Hold out the entire item rather than one familiar angle.",
    "boundary": "Use owned or approved post-process examples outside active machinery. Public benchmark references provide context and do not grant rights to include their assets in a commercial package."
  }
}