Lean Six Sigma Black Belt Certification Design for Six Sigma (DFSS)

Question 1

What does DFSS stand for in the context of Six Sigma methodology?

Accepted Answer

Design for Six Sigma

Answer

DFSS stands for Design for Six Sigma, a methodology used to design or redesign products and processes to achieve Six Sigma quality levels from inception rather than through improvement of existing processes.

Question 2

Which DFSS roadmap consists of the phases Define, Measure, Analyze, Design, and Verify?

Accepted Answer

DMADV

Answer

DMADV (Define, Measure, Analyze, Design, Verify) is the most widely used DFSS roadmap, replacing the Improve and Control phases of DMAIC with Design and Verify to focus on new product or process creation.

Question 3

Quality Function Deployment (QFD) is primarily used in DFSS to accomplish which of the following?

Accepted Answer

Translate customer requirements into technical design specifications

Answer

QFD translates the Voice of the Customer (VOC) into specific technical design requirements using tools like the House of Quality, ensuring customer needs are engineered into the product from the start.

Question 4

A Critical-to-Quality (CTQ) characteristic in DFSS is best described as:

Accepted Answer

A key product or process attribute that significantly impacts customer satisfaction

Answer

CTQ characteristics are measurable product or process attributes directly linked to customer satisfaction that must be designed in from the start rather than inspected in later.

Question 5

The Kano model used in DFSS classifies customer requirements into three primary categories. Which of the following is NOT one of them?

Accepted Answer

Compliance requirements

Answer

The Kano model categorizes requirements as Basic (must-be), Performance (one-dimensional), and Delight (attractive/excitement features) — compliance is a regulatory concept, not a Kano category.

Lean Six Sigma Black Belt Certification Practice Test

Lean Six Sigma Black Belt Certification Practice Test

Lean Six Sigma Black Belt Certification Design for Six Sigma (DFSS)