1. Select critical-to-quality (CTQ) product characteristics
For example, if the metal hardness is lower than expected on a screwdriver, that product might not be able to perform its intended task. Hardness is a CTQ characteristic.
Before we break down the steps, we first need to understand what Statistical Process Control (SPC) is. SPC can help a factory measure and control quality by gathering data to monitor the production process. It not only allows factories to operate at its highest capacity but also sets the foundation for continuous improvement.
While SPC can help control processes and ensure consistent output, many of China’s factories seldom apply it.
To understand how this tool works, it is best to follow the logical steps in its implementation in a factory:
Despite the relative simplicity of implementing SPC, it is rarely realized in factories across most industries in China. In most instances, factories would benefit from enforcing SPC, would yours?
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