5 TYPES OF CONTROL CHARTS IN QUALITY CONTROL
Quality control charts also called the Shewhart chart are used as an important part of process improvement techniques in numerous industries. Variations within any process are an unavoidable aspect. But when timely corrective action is not taken then these variations can affect the business negatively. The importance of quality control charts is, in such scenarios, to study the changes happening over time in the process.
Control charts are graphs with a central line for the average, an upper line for the upper control limit, and a lower line for the lower control limit. Control charts in quality control are used as a tool for data collection, data comparison and analysis. For variable data, these charts are used in pairs whereas for attribute data they are used singly.
What is a control chart in quality control?
In quality control, control charts are always used in combination with other process improvement tools. Across industries such as healthcare, service, manufacturing or others, control charts can be used to monitor how variables change over time. Using quality control charts effectively is all about having a good understanding of the variations and enabling continuous improvement.
A control chart in quality control is especially useful to monitor the process that is under statistical control. Quality control charts are considered one of the seven basic quality tools for process improvement and are used in Lean Six Sigma projects and DMAIC (an acronym for Define, Measure, Analyze, Improve and Control) projects that are under the control phase.
Read more :- https://blog.inspectionmanaging.com/quality-control/5-types-of-control-charts-in-quality-control