Critical-to-quality (CTQ) Tree

A Critical-to-quality Tree - What’s That?

What is the purpose of critical-to-quality trees?

• To translate abstract customer requirements to measurable steps and targets.

What are the steps required in creating a critical-to-quality tree?

• Step 1: identify and define the customer need
• Step 2: identify and define drivers behind the need
• Step 3: define measurable targets to address each driver