In weak statistical control?. (25th April 2007)

• Record Type: Journal Article
• Authors: Chakhunashvili, Alexander; Bergman, Bo
• Is Part Of: International journal of six sigma and competitive advantage. Volume 3:Number 1(2007)
• Page Start: 91
• Page End: 102
• Publication Date: 2007-04-25
• Subjects: assignable causes of variation -- capability indices -- predictability -- six sigma -- statistical process control -- SPC -- statistical control -- statistical quality control -- SQC; Six sigma (Quality control standard) -- Periodicals; Quality control -- Periodicals; 658.4013
• Languages: English
• ISSNs: 1479-2494

Abstract

There are usually two distinct objectives to attain a process in statistical control, including economic aspects, and predictability. While both objectives are important from a statistical quality control standpoint, they do not necessarily have to be fulfilled simultaneously. In this paper, we suggest a generalisation of the concept 'in statistical control' especially useful for processes in which assignable causes of a certain kind are found, but their presence do not jeopardise the predictability (within limits) of the process. Such processes are referred in this paper as processes in weak statistical control.