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

Define, Formulate, Solve, Sustain

Answer

Development Framework for Statistical Solutions

Answer

Dynamic Flow System Standards

Question 2

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

Accepted Answer

DMADV

Answer

DMAIC

Answer

IDOV

Answer

DCCDI

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

Measure process capability after production begins

Answer

Control defects during the manufacturing process

Answer

Analyze root causes of existing process failures

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

A metric for measuring defects per million opportunities in production

Answer

A statistical tool used to validate the measurement system

Answer

A method for prioritizing improvement projects in a portfolio

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

Basic (must-be) requirements

Answer

Performance (one-dimensional) requirements

Answer

Delight (attractive) requirements

Question 6

The primary purpose of the concept generation and selection phase in DFSS is to:

Accepted Answer

Evaluate multiple design alternatives against structured criteria and select the best option

Answer

Monitor process performance metrics after full implementation

Answer

Measure baseline capability of the current process before redesign

Answer

Define the project scope, charter, and business case for leadership

Question 7

Which statement best distinguishes DFSS from DMAIC?

Accepted Answer

DFSS focuses on designing new products or processes to Six Sigma levels; DMAIC improves existing processes

Answer

DFSS is used for incremental improvement of existing processes; DMAIC is used for new designs

Answer

DFSS requires fewer statistical tools than DMAIC and is simpler to apply

Answer

DFSS applies only to manufacturing environments while DMAIC applies to all industries