Design of the statistical control of low fraction nonconforming processes restricted to small samples

Detalhes bibliográficos
Autor(a) principal: Leiras, Adriana
Data de Publicação: 2007
Outros Autores: Epprecht, Eugenio Kahn, Costa, Antonio Fernando Branco [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/231046
Resumo: We present the non-conventional design of no charts used for the surveillance of processes characterized by a very low fraction nonconforming, with a costly and/or time-consuming inspection procedure. which makes the inspection of large samples prohibitive. Under these circumstances, the trade-off between the false-alarm rate and the speed with which the chart signals process deteriorations is the basis to design the control chart, once [depending on the sample size) the conventional np chart with three-sigma limits offers little protection against false alarms or is slow in detecting process disturbances. The study was motivated by the real case of a newspapers packaging process. The nominal number of newspapers in the package depends on the newspaper's breadth, and packages with a number of newspapers different from nominal are considered nonconforming.
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spelling Design of the statistical control of low fraction nonconforming processes restricted to small samplesPlanejamento do controle estatístico de processos com baixa fração não conforme restrito a amostras pequenasControl by attributesDesign of control chartsNp chartsStatistical process controlWe present the non-conventional design of no charts used for the surveillance of processes characterized by a very low fraction nonconforming, with a costly and/or time-consuming inspection procedure. which makes the inspection of large samples prohibitive. Under these circumstances, the trade-off between the false-alarm rate and the speed with which the chart signals process deteriorations is the basis to design the control chart, once [depending on the sample size) the conventional np chart with three-sigma limits offers little protection against false alarms or is slow in detecting process disturbances. The study was motivated by the real case of a newspapers packaging process. The nominal number of newspapers in the package depends on the newspaper's breadth, and packages with a number of newspapers different from nominal are considered nonconforming.Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marques de São Vicente 225, 22453-900 Rio de Janeiro, RJDepartamento de Engenharia Industrial, Rua Marquies de Sao Vicente 225, 22453-900 Rio de Janeiro, RJUNESP Faculdade de Engenharia, Campus de Guaratinguetá, SPDepartamento de Produção, Av. Ariberto Pereira da Cunha 333, 12516-410 Guaratinguetá, SPUNESP Faculdade de Engenharia, Campus de Guaratinguetá, SPPontifícia Universidade Católica do Rio de Janeiro (PUC-Rio)Universidade Estadual Paulista (UNESP)Leiras, AdrianaEpprecht, Eugenio KahnCosta, Antonio Fernando Branco [UNESP]2022-04-29T08:43:21Z2022-04-29T08:43:21Z2007-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article139-150Producao, v. 17, n. 1, p. 139-150, 2007.1980-54110103-6513http://hdl.handle.net/11449/2310462-s2.0-34648837481Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporProducao28666info:eu-repo/semantics/openAccess2024-07-02T17:37:04Zoai:repositorio.unesp.br:11449/231046Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:39:17.283573Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Design of the statistical control of low fraction nonconforming processes restricted to small samples
Planejamento do controle estatístico de processos com baixa fração não conforme restrito a amostras pequenas
title Design of the statistical control of low fraction nonconforming processes restricted to small samples
spellingShingle Design of the statistical control of low fraction nonconforming processes restricted to small samples
Leiras, Adriana
Control by attributes
Design of control charts
Np charts
Statistical process control
title_short Design of the statistical control of low fraction nonconforming processes restricted to small samples
title_full Design of the statistical control of low fraction nonconforming processes restricted to small samples
title_fullStr Design of the statistical control of low fraction nonconforming processes restricted to small samples
title_full_unstemmed Design of the statistical control of low fraction nonconforming processes restricted to small samples
title_sort Design of the statistical control of low fraction nonconforming processes restricted to small samples
author Leiras, Adriana
author_facet Leiras, Adriana
Epprecht, Eugenio Kahn
Costa, Antonio Fernando Branco [UNESP]
author_role author
author2 Epprecht, Eugenio Kahn
Costa, Antonio Fernando Branco [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio)
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Leiras, Adriana
Epprecht, Eugenio Kahn
Costa, Antonio Fernando Branco [UNESP]
dc.subject.por.fl_str_mv Control by attributes
Design of control charts
Np charts
Statistical process control
topic Control by attributes
Design of control charts
Np charts
Statistical process control
description We present the non-conventional design of no charts used for the surveillance of processes characterized by a very low fraction nonconforming, with a costly and/or time-consuming inspection procedure. which makes the inspection of large samples prohibitive. Under these circumstances, the trade-off between the false-alarm rate and the speed with which the chart signals process deteriorations is the basis to design the control chart, once [depending on the sample size) the conventional np chart with three-sigma limits offers little protection against false alarms or is slow in detecting process disturbances. The study was motivated by the real case of a newspapers packaging process. The nominal number of newspapers in the package depends on the newspaper's breadth, and packages with a number of newspapers different from nominal are considered nonconforming.
publishDate 2007
dc.date.none.fl_str_mv 2007-01-01
2022-04-29T08:43:21Z
2022-04-29T08:43:21Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Producao, v. 17, n. 1, p. 139-150, 2007.
1980-5411
0103-6513
http://hdl.handle.net/11449/231046
2-s2.0-34648837481
identifier_str_mv Producao, v. 17, n. 1, p. 139-150, 2007.
1980-5411
0103-6513
2-s2.0-34648837481
url http://hdl.handle.net/11449/231046
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Producao
28666
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 139-150
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128394872750080

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