Understanding Quality Control (QC) Quality control involves testing units and determining if they are within the specifications for the final product.

How to Use Microsoft Excel to Draw Control Charts and Graphs. A control chart plots measured values along with upper and lower quality control limits. Values appearing outside these limits are ...

How to Interpret the Mean & Standard Deviation on a Control Chart. The extent to which products meet specifications needs to be systematically monitored in a production process. Product quality ...

Key Points Trend charts are used to see the changes throughout a process. They come in different forms like the run, control, and time series charts. Trend charts are used to monitor your process ...

Youíll learn ALL about the 7 QC Tools while we work an example to demonstrate how you might use these tools in the real world.

Control chart- a time-ordered plot of sample statistics, used to distinguish between random and nonrandom variability Control limits- the dividing lines between random and nonrandom deviations from ...

In this article, we examine the data quality problem and propose the use of control charting methods as viable tools for data quality monitoring and improvement. We motivate our discussion using an ...