Control charts: a cost‐optimization approach for processes with random shifts | Zendy

Zempléni András | Zendy; Véber Miklós | Zendy; Duarte Belmiro | Zendy; Saraiva Pedro | Zendy

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Control charts: a cost‐optimization approach for processes with random shifts

Author(s) -

Zempléni András,

Véber Miklós,

Duarte Belmiro,

Saraiva Pedro

Publication year - 2004

Publication title -

applied stochastic models in business and industry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.413

H-Index - 40

eISSN - 1526-4025

pISSN - 1524-1904

DOI - 10.1002/asmb.521

Subject(s) - control chart , computer science , sampling (signal processing) , control (management) , statistical process control , statistics , process (computing) , econometrics , operations research , mathematics , artificial intelligence , filter (signal processing) , computer vision , operating system

In this paper we describe an approach for establishing control limits and sampling times which derives from economic performance criteria and a model for random shifts. The total cost related to both production and control is calculated, based on cost estimates for false alarms, for not identifying a true out of control situation, and for obtaining a data record through sampling. We describe the complete process for applying the method and compare with conventional procedures to real data from a Portuguese pulp and paper industrial plant. It turns out that substantial cost‐reductions may be obtained. Copyright © 2004 John Wiley & Sons, Ltd.

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