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Learn

Module overview

What is quality?

CTQ and CTC

Why identify CTQs

The CTQ tree

A CTQ tree in practice

The cost of poor quality

The iceberg

The cost of quality

Six Sigma and the cost of quality

Managing the cost of quality

Sustainability lens

Practise

Quality practice: question 1 of 10

Quality practice: question 2 of 10

Quality practice: question 3 of 10

Quality practice: question 4 of 10

Quality practice: question 5 of 10

Quality practice: question 6 of 10

Quality practice: question 7 of 10

Quality practice: question 8 of 10

Quality practice: question 9 of 10

Quality practice: question 10 of 10

Review game

Quality crossword

Chapter 8 of the Yellow Belt handbook looks at what quality means, how to turn customer needs into measures with a CTQ tree, and how to count the cost of poor quality and the cost of quality. It also explains why Six Sigma tends to lower both.

Quality: Requirements, CTQs and the Cost of Quality

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