Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Quality evaluation
Patent
1996-05-07
1999-08-10
MacDonald, Allen R.
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Quality evaluation
702 81, 702 82, 702 89, 705 7, 705 21, 36446815, 36446816, 36446817, G01N 2125, G06F 1518, G06F 1750, G06F 1900
Patent
active
059373644
ABSTRACT:
Disclosed is a computer implemented method for automating the selection of an analytical statistical quality control (QC) procedure. Inputs of a quality requirement and observed performance characteristics of a method of measurement are initially provided, together with a database of theoretical operating characteristics of statistical QC procedures. An appropriate quality-planning algorithm (either analytical or clinical) which relates the quality requirement, the observed performance characteristics of the method of measurement, and the theoretical operating characteristics of statistical QC procedures is also provided. Using predetermined QC selection criteria and selection logic, a computer is programmed to automatically choosing, based on the quality requirement, observed method performance, and operating characteristic of candidate QC procedures, a subset of control rules and numbers of control measurements which satisfy selection criteria and selection logic. Also disclosed is a dynamic QC process for automatically changing the statistical QC procedure when there are changes in performance of a method of measurement. In this embodiment, real-time statistical estimates of the performance characteristics of a method are provided through on-line sampling with an analytical instrument and this data is used to automatically select a QC procedure.
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Stein Bernard
Westgard James O.
Farrell Kevin M.
Kauof Pedro R.
MacDonald Allen R.
WesTgard Quality Corporation
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