Control charts have two general uses in an improvement project. Undeniably, the most common application is as a tool to monitor process stability and control. A less common, although some might argue ...
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 ...
Modern studies have shown that the XÌ„ control charts with variable parameters (VPs) detect process shifts faster than the traditional XÌ„ control charts. This article developed the economic design of ...
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