We provide an overview and perspective on the Phase I collection and analysis of data for use in process improvement and control charting. In Phase I, the focus is on understanding …
A major tool for quality control and management, statistical process control (SPC) monitors sequential processes, such as production lines and Internet traffic, to ensure that they work …
P Qiu - Journal of Quality Technology, 2018 - Taylor & Francis
Statistical process control (SPC) charts play a central role in quality control and management. Many conventional SPC charts are designed under the assumption that the …
DM Hawkins, Q Deng - Journal of Quality Technology, 2010 - Taylor & Francis
The assumption of fully known in-control distributions has long been recognized as an idealization, at best approximately true. Recent development of normal-based change-point …
Process monitoring and fault diagnosis using profile data remains an important and challenging problem in statistical process control (SPC). Although the analysis of profile data …
A unique approach to understanding the foundations of statistical quality control with a focus on the latest developments in nonparametric control charting methodologies Statistical …
SY Li, LC Tang, SH Ng - Journal of Quality Technology, 2010 - Taylor & Francis
Nonparametric control charts are useful when the underlying process distribution is not likely to be normal or is unknown. In this paper, we propose two nonparametric analogs of the …
C Zou, F Tsung - Journal of Quality Technology, 2010 - Taylor & Francis
Nonparametric or distribution-free charts are useful in statistical process control when there is a lack of or limited knowledge about the underlying process distribution. Most existing …
P Qiu, Z Li - Technometrics, 2011 - Taylor & Francis
This article considers statistical process control (SPC) of univariate processes when the parametric form of the process distribution is unavailable. Most existing SPC procedures are …