Statistical process control with several components of common cause variability
作者:
WILLIAMH. WOODALL,
EDWARDV. THOMAS,
期刊:
IIE Transactions
(Taylor Available online 1995)
卷期:
Volume 27,
issue 6
页码: 757-764
ISSN:0740-817X
年代: 1995
DOI:10.1080/07408179508936792
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The most commonly used model of ‘statistical’ control' for industrial production processes is that observations taken over time are independent and identically distributed. Thus, for example, the estimate of variability used to establish Shewhart X¯-chart control limits is almost always based on within-subgroup variability. We review and present generalizations of this in-control model to include multiple components of common cause variability, such as batch-to-batch variability. An example involving integrated circuit processing, with three components of variability, is given to illustrate the proposed techniques. The usefulness of the multi-vari chart is emphasized.
点击下载:
PDF (520KB)
返 回