The 4 Loops of Quality define a

1. Lean Quality Systems Control, Containment and Continuous Improvement

2. Focus on Root Cause of Variability Impact: Cost/ Occurrence Frequency: Problems/Opportunities 0 Special Cause Incidents High Visibility/ Containment Actions Low Occurrence Variability/Durability Customer Satisfaction Zone Product/Process Robustness Customer Satisfaction Source: J.D. Power & Associates

4. Quality Loops: Protect the Customer and Feedback for Improvement Quality Loops Zone Workstation Customer Quality Loop 1 Quality Loop 2 Quality Loop 3 Quality Loop 4 Plant / Process

5. Quality Loop 4 Customer Loop 4 – The Customer Filter Objective – Feedback from the customer for immediate and effective resolution of real issues, and to align product and process to customer needs and wants.

7. Quality Loop 3 Plant / Process Loop 3 – End-of-Process Loop Objective, Ideal – Act as a rapid representation of customer response. Objective, Pragmatic – Act as a dynamic filter to protect customer based on Loop 1 and 2 activity.

9. Quality Loop 2 Zone Loop 2 – Zone Control Objective – To establish a tight filter of quality issues and fast feedback into workstation issues.

11. Quality Loop 1 Workstation Loop 1 – Operating / Workstation Objective – To prevent defects from reaching the immediate customer, the next step in the process.

15. Quality Filter Product Design Process Running Customer Requirements: Needs, Perceptions & Behaviors Robust and Capable Loop In-Control Loop Building a Robust and Capable Model for Meeting Customer Requirements Quality Response Process Process Design