Quality control is a process by which a business ensures that product quality is maintained or improved. Learn whether quality control is a career option for you.

Types of Control Charts There are two main types of control charts that utilize the mean and standard deviation as some of the quality determinant parameters.

The quality control activity during production consists of taking samples from the run continuously, taking measurements on the samples immediately, and then plotting them rapidly on a Shewhart Chart.

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 ...

L. Allison Jones-Farmer, Jeremy D. Ezell, Benjamin T. Hazen, Applying Control Chart Methods to Enhance Data Quality, Technometrics, Vol. 56, No. 1 (February 2014), pp ...

Often, however, “quality assurance” and “quality control” are used interchangeably, referring to the actions performed to ensure the quality of a product, service or process.