Search Results - subject:"STATISTICAL PROCESS CONTROL"

QUALITY NOTES : Simultaneous monitoring of univariate and multivariate SPC information using boxplots

Atienza, Orlando O.; Ching Tang, Loon; Wah Ang, Beng - In: International Journal of Quality Science 3 (1998) 2, pp. 194-204

multivariate statistical process control (SPC). The chart is easy to implement and interpret. Two examples are given for …

Persistent link: https://www.econbiz.de/10014802405

Deming’s red bead experiment and mechanical sampling

Edwards, Phillip M. - In: International Journal of Quality Science 3 (1998) 3, pp. 287-292

The red bead experiment (RBE) is very well‐known in total quality management. It was designed by Dr W.E. Deming to show managers several lessons in management and sampling. The RBE has evolved over several decades and now has an accepted standard format. The RBE also serves as an introduction...

Persistent link: https://www.econbiz.de/10014802409

On multivariable process control charts : a comprehensive review

Pemajayantha, Vithanage; Agrawal, Rakesh K.; Truong, … - 1998

Persistent link: https://www.econbiz.de/10000662205

There’s nothing normal about SPC!

Neave, Henry R. - In: Training for Quality 5 (1997) 3, pp. 106-111

Knocks the final few nails into the coffin which contains the remains of the notion that the theory and practice of control charting depend on assumptions of normality. The subject’s creator, Dr Walter Shewhart, denied this as long ago as 1939! His most famous student, Dr W. Edwards Deming,...

Persistent link: https://www.econbiz.de/10015028383

Extending process thinking: design of experiments in sales and marketing

Starkey, Michael; Aughton, Jeff; Brewin, Roger - In: The TQM Magazine 9 (1997) 6, pp. 434-439

An understanding of processes is essential before statistical tools such as statistical process control (SPC) and …

Persistent link: https://www.econbiz.de/10015033560

Opportunities for Improved Statistical Process Control

Porteus, Evan L.; Angelus, Alexandar - In: Management Science 43 (1997) 9, pp. 1214-1228

production going during inspection and/or restoration, and lot sizing. We focus on describing how dynamic statistical process … control (DSPC) rules can improve on traditional, static ones. We explore numerical examples and identify nine opportunities …

Persistent link: https://www.econbiz.de/10009203944

Using On-Line Sensors in Statistical Process Control

Gong, Linguo; Jwo, Wushong; Tang, Kwei - In: Management Science 43 (1997) 7, pp. 1017-1028

As manufacturing technology moves toward more computerized automation, statistical process control (SPC) techniques … process control decisions. In phase 1 of this procedure, a production process is monitored continually by a sensor. When a … this paper, a two-phase procedure is proposed for combining an on-line sensor and a control chart to improve statistical …

Persistent link: https://www.econbiz.de/10009218145

The use of probability limits for process control based on geometric distribution

Xie, M.; Goh, T.N. - In: International Journal of Quality & Reliability Management 14 (1997) 1, pp. 64-73

Control charts based on geometric distribution have shown to be useful when this is a better approximation of the underlying distribution than the Poisson distribution. The traditional c ‐chart, if used, will cause too many false alarms. It is noted that for geometric distribution, the control...

Persistent link: https://www.econbiz.de/10014801104

Comparison between constant and step‐stress tests for Weibull models

Khamis, Imad H. - In: International Journal of Quality & Reliability Management 14 (1997) 1, pp. 74-81

Compares optimum constant‐stress and simple step‐stress ALTs for the Weibull distribution. The purpose is to quantify the advantage of using step‐stress testing in comparison to constant‐stress testing when censoring is likely to occur at the lower levels of stress. Assumes that a...

Persistent link: https://www.econbiz.de/10014801105

Calculating the comparative two‐sample tests for censored reliability data

Bohoris, G.A. - In: International Journal of Quality & Reliability Management 14 (1997) 1, pp. 82-88

Summarizes part of the work carried out to date on seeking analytical solutions to the two‐sample problem with censored data in the context of reliability and maintenance optimization applications. For this purpose, reviews non‐parametric two‐sample tests for censored data and details...

Persistent link: https://www.econbiz.de/10014801106