The 7 QC tools are a set of simple, yet powerful techniques used to identify and solve problems in processes. They're widely used in quality management to help people understand what’s going wrong, why it’s happening, and how to fix it
1. Check Sheet: A simple table to track how often something happens, like counting defects each day.
2. Fishbone Diagram: A visual tool to brainstorm and organize possible reasons behind a problem, shaped like a fish’s skeleton.
3. Histogram: A bar chart that shows how data is distributed, helping you spot patterns, like delivery times.
4. Pareto Analysis: A method to focus on the most important issues, based on the idea that 80% of problems come from 20% of causes.
5. Control Chart: A line graph that monitors a process over time, showing if it stays within normal limits or needs attention.
6. Scatter Diagram: A chart that plots two variables to see if they’re related, like checking if temperature affects production quality.
7. Stratification: A way to split data into different groups to better understand the root cause, like separating sales by region to find trends.
Read also: Basic Tools for Root Cause Analysis (RCA)
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