NDLI: Quality Control with Internal Targets—Multivariate Process Capability Studies

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Quality Control with Internal Targets—Multivariate Process Capability Studies

Content Provider	Scilit
Author	Fuchs, Camil Kenett, Ron S.
Copyright Year	1998
Description	During an ongoing industrial process, quality control is typically performed with target values derived from a standard “reference” sample whose units have been determined to be of acceptable quality on all the analyzed variables. However, at the initial stage of a new or changed process, a thorough investigation of its characteristics and capabilities is required. In a process capability study, there typically are no preexisting data on the process characteristics. In particular, no target values based on prior information from the production of the component are available, and the target values therefore have to be calculated internally. It is important to distinguish between product specification limits which are derived from customer needs, and process quality characteristics which depend upon the processes involved in the production and delivery of the product. Univariate process characteristics are typically given in terms of an average, estimating the process mean, and a standard deviation, estimating the process variability. In the multivariate case the vector of means replaces the univariate process mean anp the correlations between variables are added to the variables' standard deviations or variances. Book Name: Multivariate Quality Control
Related Links	https://content.taylorfrancis.com/books/download?dac=C2006-0-16240-8&isbn=9780429083136&doi=10.1201/9781482273731-5&format=pdf
Ending Page	78
Page Count	16
Starting Page	63
DOI	10.1201/9781482273731-5
Language	English
Publisher	Informa UK Limited
Publisher Date	1998-04-22
Access Restriction	Open
Subject Keyword	Book Name: Multivariate Quality Control Manufacturing Engineering Quality Control Target Values Process Characteristics Standard Deviations Process Mean Typically Univariate Process
Content Type	Text
Resource Type	Chapter

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