What is a potential benefit of using SPC charts?

Using Statistical Process Control (SPC) charts directly contributes to preventing over-adjustments in processes, making process management more efficient and effective. SPC charts provide a visual representation of process performance over time, allowing operators and managers to identify trends, variations, and areas that require attention.

By monitoring the process variability, stakeholders can determine whether a process is in a state of control and when adjustments may actually be necessary. This prevents unnecessary or excessive changes that can lead to inefficiencies, quality issues, or product variability. Instead of reacting to every minor variation, the use of SPC charts allows for a more measured and informed approach, focusing adjustments only on statistically significant variations that require intervention. Thus, SPC charts help maintain stability in process performance while ensuring quality and consistency in outputs.