Oct 17

Control Charts. Part – 2 : Project Quality Control

Control Charts:

Uses statistical sampling and known as statistical process control.

Example:

take quality measurements of different samples. Find the average quality. Draw a line with the average quality. Plot all the samples's quality. Draw the line for upper quality limit. Draw the line for lower quality limit. If all/most points are in between the process may be in control. If seven consecutive samples fall on one side of the average line the samples must be inspected.

Flowcharting:

Shows how different components relate and determine where quality problems may occur. Example: Cause and effect diagram

Series Navigation<< Quality Control. Part – 1: Overview and ToolsHistogram: Part – 3: Quality Control >>
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