An overview of phase I analysis for process improvement and monitoring

LA Jones-Farmer, WH Woodall, SH Steiner… - Journal of Quality …, 2014 - Taylor & Francis
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 …

[HTML][HTML] Current research on profile monitoring

WH Woodall - Production, 2007 - SciELO Brasil
In many applications the quality of a process or product is best characterized and
summarized by a functional relationship between a response variable and one or more …

Some current directions in the theory and application of statistical process monitoring

WH Woodall, DC Montgomery - Journal of Quality Technology, 2014 - Taylor & Francis
The purpose of this paper is to provide an overview and our perspective of recent research
and applications of statistical process monitoring. The focus is on work done over the past …

Using control charts to monitor process and product quality profiles

WH Woodall, DJ Spitzner… - Journal of Quality …, 2004 - Taylor & Francis
In most statistical process control (SPC) applications, it is assumed that the quality of a
process or product can be adequately represented by the distribution of a univariate quality …

Monitoring general linear profiles using multivariate exponentially weighted moving average schemes

C Zou, F Tsung, Z Wang - Technometrics, 2007 - Taylor & Francis
We propose a statistical process control scheme that can be implemented in industrial
practice, in which the quality of a process can be characterized by a general linear profile …

Nonparametric profile monitoring by mixed effects modeling

P Qiu, C Zou, Z Wang - Technometrics, 2010 - Taylor & Francis
In some applications, the quality of a process is characterized by the functional relationship
between a response variable and one or more explanatory variables. Profile monitoring is …

A control chart based on a change-point model for monitoring linear profiles

C Zou, Y Zhang, Z Wang - IIE transactions, 2006 - Taylor & Francis
A control chart based on the change-point model is proposed that is able to monitor linear
profiles whose parameters are unknown but can be estimated from historical data. This chart …

Monitoring correlation within linear profiles using mixed models

WA Jensen, JB Birch, WH Woodall - Journal of Quality Technology, 2008 - Taylor & Francis
Profile monitoring is a relatively new set of techniques in quality control used when the
product or process quality is best represented by a function (or a curve) at each time period …

A change-point approach for phase-I analysis in multivariate profile monitoring and diagnosis

K Paynabar, C Zou, P Qiu - Technometrics, 2016 - Taylor & Francis
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 …

Monitoring profiles based on nonparametric regression methods

C Zou, F Tsung, Z Wang - Technometrics, 2008 - Taylor & Francis
The use statistical process control (SPC) in monitoring and diagnosis of process and product
quality profiles remains an important problem in various manufacturing industries. The SPC …