A profile monitoring of the multi-stage process

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

4 Scopus Citations
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Author(s)

  • Changsoon Park
  • Kwok-Leung Tsui

Detail(s)

Original languageEnglish
Pages (from-to)407–423
Journal / PublicationQuality Technology and Quantitative Management
Volume16
Issue number4
Online published13 Mar 2018
Publication statusPublished - 2019

Abstract

The effective monitoring of the multi-stage process in the modern manufacturing and service processes is crucial in maintaining and improving the final output quality. The essential of the multi-stage process monitoring is to be able to give a signal at each single stage in order to avoid the delay in detecting assignable causes in the process. A multi-stage process is separated to a series of the single-stage processes, and each single-stage process is treated as a profile structure, whose quality is considered as the process output with inputs from the previous stage and the current stage. The EWMA chart is implemented to the profile process using the orthogonal design input. The true process output is often measured with errors because the complexity of the multi-stage process makes the true quality difficult to measure. The harmfulness of measurement errors in the multi-stage process is also investigated.

Research Area(s)

  • ARL, EWMA chart, measurement error, orthogonal design matrix, Phase II, Profile analysis

Citation Format(s)

A profile monitoring of the multi-stage process. / Park, Changsoon; Tsui, Kwok-Leung.
In: Quality Technology and Quantitative Management, Vol. 16, No. 4, 2019, p. 407–423.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review