A new asymmetric bounded loss-based process capability index

Process capability indices such as Cp, Cpk, Cpu and Cpl are common metrics to evaluate and predict the performance of a process. Although higher process capability indices indicate higher process “quality”, but a high quality process does not necessarily guarantee the fewer rates of rejects. Therefo...

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Main Authors: Abdolshah, Mohammad, Mohd Yusuff, Rosnah, Ismail, Yusof, Tang, Sai Hong
Format: Article
Language:English
Published: IDOSI Publications 2010
Online Access:http://psasir.upm.edu.my/id/eprint/44495/
http://psasir.upm.edu.my/id/eprint/44495/1/A%20new%20asymmetric%20bounded%20loss-based%20process%20capability%20index.pdf
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author Abdolshah, Mohammad
Mohd Yusuff, Rosnah
Ismail, Yusof
Tang, Sai Hong
author_facet Abdolshah, Mohammad
Mohd Yusuff, Rosnah
Ismail, Yusof
Tang, Sai Hong
author_sort Abdolshah, Mohammad
building UPM Institutional Repository
collection Online Access
description Process capability indices such as Cp, Cpk, Cpu and Cpl are common metrics to evaluate and predict the performance of a process. Although higher process capability indices indicate higher process “quality”, but a high quality process does not necessarily guarantee the fewer rates of rejects. Therefore, a process capability index based on rate of rejects or real losses is more reliable and proper. This paper defines a novel process capability index called asymmetric inverted normal loss-based process capability index (AIPCI) with the aid of asymmetric inverted normal loss function. The logical idea is to compare the standard loss for a capable process with other cases. AIPCI is a bounded asymmetric process capability index and can provide a more realistic metric to evaluate and predict the performance of a process.
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spelling upm-444952020-08-04T02:20:46Z http://psasir.upm.edu.my/id/eprint/44495/ A new asymmetric bounded loss-based process capability index Abdolshah, Mohammad Mohd Yusuff, Rosnah Ismail, Yusof Tang, Sai Hong Process capability indices such as Cp, Cpk, Cpu and Cpl are common metrics to evaluate and predict the performance of a process. Although higher process capability indices indicate higher process “quality”, but a high quality process does not necessarily guarantee the fewer rates of rejects. Therefore, a process capability index based on rate of rejects or real losses is more reliable and proper. This paper defines a novel process capability index called asymmetric inverted normal loss-based process capability index (AIPCI) with the aid of asymmetric inverted normal loss function. The logical idea is to compare the standard loss for a capable process with other cases. AIPCI is a bounded asymmetric process capability index and can provide a more realistic metric to evaluate and predict the performance of a process. IDOSI Publications 2010 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/44495/1/A%20new%20asymmetric%20bounded%20loss-based%20process%20capability%20index.pdf Abdolshah, Mohammad and Mohd Yusuff, Rosnah and Ismail, Yusof and Tang, Sai Hong (2010) A new asymmetric bounded loss-based process capability index. World Applied Sciences Journal, 11 (7). pp. 885-892. ISSN 1818-4952; ESSN: 1991-6426 https://www.idosi.org/wasj/wasj11(7)2010.htm
spellingShingle Abdolshah, Mohammad
Mohd Yusuff, Rosnah
Ismail, Yusof
Tang, Sai Hong
A new asymmetric bounded loss-based process capability index
title A new asymmetric bounded loss-based process capability index
title_full A new asymmetric bounded loss-based process capability index
title_fullStr A new asymmetric bounded loss-based process capability index
title_full_unstemmed A new asymmetric bounded loss-based process capability index
title_short A new asymmetric bounded loss-based process capability index
title_sort new asymmetric bounded loss-based process capability index
url http://psasir.upm.edu.my/id/eprint/44495/
http://psasir.upm.edu.my/id/eprint/44495/
http://psasir.upm.edu.my/id/eprint/44495/1/A%20new%20asymmetric%20bounded%20loss-based%20process%20capability%20index.pdf