The extent to which products meet specifications needs to be systematically monitored in a production process. Product quality will typically be defined by two quantities: deviations from stated ...

Control charts have two general uses in an improvement project. Undeniably, the most common application is as a tool to ...

The International Journal for Quality in Health Care (IJQHC) is a leading international peer-reviewed scholarly journal addressing research, policy, and implementation related to the quality of health ...

Multivariate quality characteristics are often monitored using a single statistic or a few statistics. However, it is difficult to determine the causes of an out-of-control signal based on a few ...