The process incapability index under fuzziness with an application for decision making

Process capability indices (PCIs) provide numerical measures on whether a process confirms to the defined capability prerequisite. They have been used to measure the ability of process to decide how well the process meets the specification limits (SLs). The PCIs have been successfully applied by com...

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Main Author: İhsan Kaya
Format: Article
Language:English
Published: Springer 2014-01-01
Series:International Journal of Computational Intelligence Systems
Subjects:
Online Access:https://www.atlantis-press.com/article/25868461.pdf
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author İhsan Kaya
author_facet İhsan Kaya
author_sort İhsan Kaya
collection DOAJ
description Process capability indices (PCIs) provide numerical measures on whether a process confirms to the defined capability prerequisite. They have been used to measure the ability of process to decide how well the process meets the specification limits (SLs). The PCIs have been successfully applied by companies for evaluating the quality and productivity performance. In this paper, one of the most important PCIs, process incapability index () that provides more process information than other PCIs is analyzed together with the indices inaccuracy () and imprecision () under uncertainty. When there are some uncertainties in process parameters, traditional PCIs have failed to summarize process performance. Therefore the fuzzy set theory (FST) can be employed to overcome this problem. In this paper, the index is analyzed by using the FST to obtain more sensitiveness and a deep and flexible analysis. The fuzzy estimations of the index are derived for both of triangular and trapezoidal fuzzy numbers. The obtained fuzzy incapability index () is applied in a decision making process to determine the most appropriate supplier among alternatives for a construction firm in Turkey.
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spelling doaj.art-7bad2bd7361a4e57a98887fbb13674302022-12-22T02:09:46ZengSpringerInternational Journal of Computational Intelligence Systems1875-68832014-01-017110.1080/18756891.2013.858905The process incapability index under fuzziness with an application for decision makingİhsan KayaProcess capability indices (PCIs) provide numerical measures on whether a process confirms to the defined capability prerequisite. They have been used to measure the ability of process to decide how well the process meets the specification limits (SLs). The PCIs have been successfully applied by companies for evaluating the quality and productivity performance. In this paper, one of the most important PCIs, process incapability index () that provides more process information than other PCIs is analyzed together with the indices inaccuracy () and imprecision () under uncertainty. When there are some uncertainties in process parameters, traditional PCIs have failed to summarize process performance. Therefore the fuzzy set theory (FST) can be employed to overcome this problem. In this paper, the index is analyzed by using the FST to obtain more sensitiveness and a deep and flexible analysis. The fuzzy estimations of the index are derived for both of triangular and trapezoidal fuzzy numbers. The obtained fuzzy incapability index () is applied in a decision making process to determine the most appropriate supplier among alternatives for a construction firm in Turkey.https://www.atlantis-press.com/article/25868461.pdfProcess incapability indexinaccuracy indeximprecision indexfuzzy set theorydecision making
spellingShingle İhsan Kaya
The process incapability index under fuzziness with an application for decision making
International Journal of Computational Intelligence Systems
Process incapability index
inaccuracy index
imprecision index
fuzzy set theory
decision making
title The process incapability index under fuzziness with an application for decision making
title_full The process incapability index under fuzziness with an application for decision making
title_fullStr The process incapability index under fuzziness with an application for decision making
title_full_unstemmed The process incapability index under fuzziness with an application for decision making
title_short The process incapability index under fuzziness with an application for decision making
title_sort process incapability index under fuzziness with an application for decision making
topic Process incapability index
inaccuracy index
imprecision index
fuzzy set theory
decision making
url https://www.atlantis-press.com/article/25868461.pdf
work_keys_str_mv AT ihsankaya theprocessincapabilityindexunderfuzzinesswithanapplicationfordecisionmaking
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