control chart

noun

, Statistics.

1. a chart on which observations are plotted as ordinates in the order in which they are obtained and on which control lines are constructed to indicate whether the population from which the observations are being drawn is remaining the same: used especially in industrial quality control.

control chart

noun

1. statistics a chart on which observed values of a variable are plotted, usually against the expected value of the variable and its allowable deviation, so that excessive variations in the quality, quantity, etc, of the variable can be detected

Example Sentences

It is also a litmus test of where any manager is on the control chart.

From The Guardian

One way to determine if a problem is common-cause or special-cause is to review a control chart of the data.

From New York Times

The foundry spent another week configuring the reference manager that scans the databases for new data and updates for the control chart.

From Forbes

‘The solution includes in-process control charts that show whether or not a process is within specification. For example, Palmer implemented a control chart of the resin binder it uses to hold the sand molds together. If the sand has too little resin, the mold will break apart. If the sand has too much resin, it will take extra labor to remove the casting from the sand mold. “The company also tracks scrap on a weekly basis and has set targets to help reduce rework.

From Forbes

One of the main tools for SQC that Deming introduced to his Japanese disciples was the control chart, invented by Walter Shewhart at Bell Labs, the research arm of America’s former telephone monopoly, Bell System, in the 1920s.

From Economist