Journal ArticleDOI
Economic design of an x control chart.
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In this paper, a computer program for the optimal economic design of an X control chart is presented, where the mean time between process shifts is an exponentially distributed random variable, and the program finds the sample size, control limit width and interval between samples that minimize the expected total costs per unit time.Abstract:
A computer program for the optimal economic design of an X control chart is presented. A single assignable cause system is assumed, where the mean time between process shifts is an exponentially distributed random variable. Given fixed and variable sampling costs, the costs of investigating action signals, the penalty cost of production in the out-of-control state, and other parameters describing process performance, the program finds the sample size, control limit width and interval between samples that minimize the expected total costs per unit time.read more
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Journal ArticleDOI
Economic Design of Control Charts: A Literature Review for 1981–1991
Chuanching Ho,Kenneth E. Case +1 more
TL;DR: This article provides a survey and brief summary of the work on economic designs published during the period from 1981 through 1991 about process control charts.
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An inventory model for deteriorating items with stock-dependent consumption rate and shortages under inflation and time discounting
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Production, Manufacturing and Logistics An inventory model for deteriorating items with stock-dependent consumption rate and shortages under inflation and time discounting
TL;DR: An inventory model for deteriorating items with stock-dependent consumption rate and shortages under inflation and time discounting over a finite planning horizon is derived and it is shown that the total cost function is convex.
Journal ArticleDOI
Statistical Quality Control Methods in Infection Control and Hospital Epidemiology, Part II: Chart Use, Statistical Properties, and Research Issues
TL;DR: The basic philosophical and theoretical foundations of statistical quality control and their relation to epidemiology are emphasized in order to expand the mutual understanding and cross-fertilization between these two disciplines.
Journal ArticleDOI
Optimization Problems and Methods in Quality Control and Improvement
TL;DR: This paper is an overview of some of the more frequently encountered optimization problems in statistics, with a focus on quality control and improvement.