{"id":5653,"date":"2023-10-22T00:22:54","date_gmt":"2023-10-22T00:22:54","guid":{"rendered":"https:\/\/www.inspectionmanaging.com\/?p=5653"},"modified":"2024-01-16T21:56:35","modified_gmt":"2024-01-16T21:56:35","slug":"5-types-of-control-charts-in-quality-control","status":"publish","type":"post","link":"https:\/\/www.inspectionmanaging.com\/blogs\/quality-control\/5-types-of-control-charts-in-quality-control","title":{"rendered":"5 TYPES OF CONTROL CHARTS IN QUALITY CONTROL"},"content":{"rendered":"

Quality control charts<\/strong> 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<\/strong> is, in such scenarios, to study the changes happening over time in the process.<\/p>\n

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 <\/strong>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.<\/p>\n

What is a control chart in quality control?<\/strong><\/h2>\n

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 <\/strong>effectively is all about having a good understanding of the variations and enabling continuous improvement.<\/p>\n

A control chart in quality control <\/strong>is especially useful to monitor the process that is under statistical control. Quality control charts<\/strong> 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.<\/p>\n

The importance of quality control<\/strong><\/a> charts <\/strong>is to enable the visualization of variation, monitor for problems and take actions to improve processes, predict expected outcomes and also to analyze the variation patterns. For optimum quality control, it is crucial to identify the right control charts on the basis of the available data.<\/p>\n

Importance of quality control charts<\/strong><\/h2>\n

Quality control charts<\/strong> are one of many graphical tools used in quality control analysis to understand the process changes that occur over time. The importance of quality control charts <\/strong>is evident in their use as statistical quality control<\/a> tools. Statistical control charts are used to determine variables, ascertain unit defect fractions, find out the faults per unit and also as a procedure for acceptance sampling. It is not feasible for the manufacturer to inspect the entire batch of products for quality control, and this makes sampling necessary.<\/p>\n

Here are some benefits of control charts that aid in quality control:<\/p>\n