Module 8 · Lesson 7 of 29
Principle 5: stop and correct quality problems
This lesson and the entire Lean Six Sigma Black Belt academy are free of charge — no fees, ever.
Learning objectives
- Explain the purpose of principle 5: stop and correct quality problems in garment operations.
- Describe when and how to apply principle 5: stop and correct quality problems on the shop floor.
- Identify common mistakes and how to avoid them.
Core idea
Build quality at source by stopping, containing, escalating and solving abnormalities rather than passing defects onward.
Method
Define stop authority and response time; protect people who signal; investigate cause. Punishing stops drives hidden defects.
Garment-factory example
An operator signals repeated skipped stitch, segregates affected WIP, corrects machine/needle/thread and verifies restart.
Method
- Define stop authority and response time;
- protect people who signal;
- investigate cause
- Punishing stops drives hidden defects
Common mistakes
- Applying the tool without observing actual garment-floor conditions.
Knowledge check
Pick one answer per question. Explanations appear after you submit.
1. Which statement best captures the core idea of Principle 5: stop and correct quality problems?
2. A common mistake when applying principle 5: stop and correct quality problems is to:
Author: NOSK.life · Last reviewed: 2026-07-21