Monitoring variability in complex manufacturing process: data analysis viewpoint with application

To relate the control limits of Shewharttype chart to the p-value, the control charting techniques were constructed based on statistical inference scheme. However, in daily practice of complex process variability (CPV) monitoring operation, these limits have nothing to do with the pvalue. We cannot...

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Main Authors: Djauhari, Maman Abdurachman, Mohd Asrah, Norhaidah, Irianto, Ibrahim, Noor Akma
Format: Article
Language:English
Published: ExcelingTech Publishers 2019
Online Access:http://psasir.upm.edu.my/id/eprint/81420/
http://psasir.upm.edu.my/id/eprint/81420/1/VECTOR.pdf
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author Djauhari, Maman Abdurachman
Mohd Asrah, Norhaidah
Irianto
Ibrahim, Noor Akma
author_facet Djauhari, Maman Abdurachman
Mohd Asrah, Norhaidah
Irianto
Ibrahim, Noor Akma
author_sort Djauhari, Maman Abdurachman
building UPM Institutional Repository
collection Online Access
description To relate the control limits of Shewharttype chart to the p-value, the control charting techniques were constructed based on statistical inference scheme. However, in daily practice of complex process variability (CPV) monitoring operation, these limits have nothing to do with the pvalue. We cannot put any number to p. Instead, p is just read as “most probably”. These words mean that in practice we are finally working under data analysis scheme instead. For this reason, in this paper we introduce the application of STATIS in CPV monitoring operation. It is a data analysis method to label the sample(s) where anomalous covariance structure occurs. This method is algebraic in nature and dominated by principal component analysis (PCA) principles. The relative position of a covariance matrix among others is visually presented along the first two eigenvalues of the so-called “scalar product matrix among covariance matrices”. Its strength will be illustrated by using a real industrial example and the results, compared with those given by the current methods, are very promising. Additionally, root causes analysis is also provided. However, since STATIS is a PCA-like, it does not provide any control chart, i.e., the history of process performance. It is to label the anomalous sample(s). To the knowledge of the authors, the application of STATIS in complex statistical process control is an unprecedented. Thus, it will enrich the literature of this field.
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spelling upm-814202021-05-25T23:52:33Z http://psasir.upm.edu.my/id/eprint/81420/ Monitoring variability in complex manufacturing process: data analysis viewpoint with application Djauhari, Maman Abdurachman Mohd Asrah, Norhaidah Irianto Ibrahim, Noor Akma To relate the control limits of Shewharttype chart to the p-value, the control charting techniques were constructed based on statistical inference scheme. However, in daily practice of complex process variability (CPV) monitoring operation, these limits have nothing to do with the pvalue. We cannot put any number to p. Instead, p is just read as “most probably”. These words mean that in practice we are finally working under data analysis scheme instead. For this reason, in this paper we introduce the application of STATIS in CPV monitoring operation. It is a data analysis method to label the sample(s) where anomalous covariance structure occurs. This method is algebraic in nature and dominated by principal component analysis (PCA) principles. The relative position of a covariance matrix among others is visually presented along the first two eigenvalues of the so-called “scalar product matrix among covariance matrices”. Its strength will be illustrated by using a real industrial example and the results, compared with those given by the current methods, are very promising. Additionally, root causes analysis is also provided. However, since STATIS is a PCA-like, it does not provide any control chart, i.e., the history of process performance. It is to label the anomalous sample(s). To the knowledge of the authors, the application of STATIS in complex statistical process control is an unprecedented. Thus, it will enrich the literature of this field. ExcelingTech Publishers 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/81420/1/VECTOR.pdf Djauhari, Maman Abdurachman and Mohd Asrah, Norhaidah and Irianto and Ibrahim, Noor Akma (2019) Monitoring variability in complex manufacturing process: data analysis viewpoint with application. International Journal of Supply Chain Management, 8 (2). pp. 1170-1177. ISSN 2051-3771; ESSN: 2050-7399 https://ojs.excelingtech.co.uk/index.php/IJSCM/article/view/2986/1612
spellingShingle Djauhari, Maman Abdurachman
Mohd Asrah, Norhaidah
Irianto
Ibrahim, Noor Akma
Monitoring variability in complex manufacturing process: data analysis viewpoint with application
title Monitoring variability in complex manufacturing process: data analysis viewpoint with application
title_full Monitoring variability in complex manufacturing process: data analysis viewpoint with application
title_fullStr Monitoring variability in complex manufacturing process: data analysis viewpoint with application
title_full_unstemmed Monitoring variability in complex manufacturing process: data analysis viewpoint with application
title_short Monitoring variability in complex manufacturing process: data analysis viewpoint with application
title_sort monitoring variability in complex manufacturing process: data analysis viewpoint with application
url http://psasir.upm.edu.my/id/eprint/81420/
http://psasir.upm.edu.my/id/eprint/81420/
http://psasir.upm.edu.my/id/eprint/81420/1/VECTOR.pdf