Continuous Inspection Schemes¶
PAGE, E. S. (1954). Continuous Inspection Schemes. Biometrika, 41(1–2), 1-2.
Cited by¶
3 citations across 3 artifacts.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Monitoring
- Systems always exhibit fluctuation; the problem is separating routine variation from changes that warrant investigation or response—the same separation Page (1954) operationalized in his cumulative-sum (CUSUM) inspection scheme for detecting persistent shifts above background variability.
This sourceIntroduces the cumulative-sum (CUSUM) control chart; provides a sensitive method for distinguishing assignable causes (small persistent shifts) from random variation, complementing Shewhart-chart detection of large transient deviations.
- Systems always exhibit fluctuation; the problem is separating routine variation from changes that warrant investigation or response—the same separation Page (1954) operationalized in his cumulative-sum (CUSUM) inspection scheme for detecting persistent shifts above background variability.
- Quality Control
- This bounds effort to signals that actually matter, preventing both the paralysis of over-response and the danger of under-response, an early-detection problem Page (1954) addressed with cumulative-sum (CUSUM) inspection schemes for sensitively flagging small persistent shifts.
This sourceIntroduces the cumulative-sum (CUSUM) control chart; provides a sensitive method for distinguishing assignable causes (small persistent shifts) from random variation, complementing Shewhart-chart detection of large transient deviations.
- This bounds effort to signals that actually matter, preventing both the paralysis of over-response and the danger of under-response, an early-detection problem Page (1954) addressed with cumulative-sum (CUSUM) inspection schemes for sensitively flagging small persistent shifts.
Mechanisms¶
- Residual-Monitoring Dashboard
- This is not a one-week blip but a drift, and a cumulative-sum control chart flags it within ≈3 weeks, well before the bias would show up as a warehouse full of unsold stock.
This sourceIntroduces a cumulative-sum inspection scheme that accumulates evidence and signals process change.
- This is not a one-week blip but a drift, and a cumulative-sum control chart flags it within ≈3 weeks, well before the bias would show up as a warehouse full of unsold stock.
Verification¶
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