{
  "title": "Fluid power actuator data for AI stroke and configuration records",
  "source_page": "https://fiund.com/industries/hydraulic-actuator-stroke-reference-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A visible change is only a partial interval",
    "context": "Paper drawings show two positions of a fictional actuator. No actual hydraulic conditions are modeled.",
    "records": [
      [
        "1",
        "Toy variant card",
        "Full span is distance between positions marked fully in and fully out."
      ],
      [
        "2",
        "Image pair",
        "Marker moves from 10 mm to 34 mm between views, same ruler."
      ],
      [
        "3",
        "Capture note",
        "Neither view identified as an endpoint."
      ]
    ],
    "question": "What distance can the two images support?",
    "answer": "The observed movement is 24 mm using the shared ruler in record 2. Record 3 leaves endpoint status unknown, so the 24 mm cannot be called the full stroke defined in record 1. Keep observed travel and full range as separate fields.",
    "failureModes": [
      "Reporting a partial movement as full stroke",
      "Inferring endpoints from the first and last capture frames"
    ],
    "fields": [
      [
        "position_mm",
        "Stores each observed coordinate"
      ],
      [
        "endpoint_status",
        "Gates full-span claims"
      ],
      [
        "scale_reference",
        "Confirms both views share a coordinate basis"
      ]
    ],
    "holdout": "Label both endpoint views and include a shifted ruler in one image; require alignment before computing the full span.",
    "boundary": "No actual actuator pressure, fit guidance, operating procedure or mechanical limits."
  }
}