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Common DFSS Methodologies, Design for X, and Robust Designs

Target Audience
Expected Duration
Lesson Objectives
Course Number

Design for Six Sigma (DFSS) is the methodology associated with the design of a process, product, or service, which results in Six Sigma output that satisfies both the external customer and internal business requirements. DFSS is an innovative strategy for the design or redesign of a process, product, or service from the ground up. This course examines several of the common methodologies utilized in Design for Six Sigma (DFSS), beginning with the two common counterparts to the DMAIC methodology: DMADV and DMADOV. Design for X is emerging as an important knowledge-based multifunctional approach to design that is aimed at particular prioritized process constraints, such as cost, manufacturability, testability, or maintainability. This course explores several constraints in more detail, offering strategies for achieving designs concentrated on the chosen criteria. Another recently developed approach, robust design, uses parameter and tolerance control to produce designs which will be reliable during manufacturing and while in use. This course will address the basic aims of parameter control, tolerance design, and statistical tolerancing. This course is aligned with the ASQ Certified Six Sigma Black Belt certification exam and is designed to assist learners as part of their exam preparation. It builds on foundational knowledge that is taught in SkillSoft's ASQ-aligned Green Belt curriculum.

Target Audience
Candidates seeking Six Sigma Black Belt certification, quality professionals, engineers, production managers, frontline supervisors, and all individuals charged with responsibility for improving quality and processes at the organizational or departmental level, including process owners and champions

Proficiency at the Green Belt level with basic Design for Six Sigma concepts as scoped in the ASQ - Six Sigma Green Belt Body of Knowledge (BOK)

Expected Duration (hours)

Lesson Objectives

Common DFSS Methodologies, Design for X, and Robust Designs

  • match new-product terms to examples
  • determine whether or not DFSS is appropriate for a given situation, and why
  • identify tools and approaches that are included in DFSS methodology
  • match the steps of the DMADOV methodology with the questions asked and activities performed in them
  • identify key requirements of a DFX initiative
  • identify the definition of Design for X (DFX)
  • match design for manufacturability and producibility strategies to examples of their practical implementation
  • recognize how to set and use target cost when designing for cost
  • recognize valid circumstances for readjusting a target cost
  • match DFX characteristics to associated strategies for design
  • identify the goals of robust design
  • use tolerance design calculations to determine tolerance specifications in a given scenario
  • distinguish between worst-case tolerancing and statistical tolerancing approaches
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