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A new asymmetric bounded loss-based process capability index


Citation

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

Abstract

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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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Publisher: IDOSI Publications
Keywords: Process capability index; Asymmetric inverted normal loss function; Bounded; Loss-based process capability index
Depositing User: Nabilah Mustapa
Date Deposited: 04 Aug 2020 02:20
Last Modified: 04 Aug 2020 02:20
URI: http://psasir.upm.edu.my/id/eprint/44495
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