E6S-002 Intro to DMAIC, Lean, 8D, & DFSS - Part 2


8D: Aaron

  • Stands for 8 Disciplines: 8 phased problem solving methodology
    • Discipline 1: Select Team
    • Discipline 2: Define and Describe the Problem
    • Discipline 3: Develop Interim Containment Plan (Unique to 8D)
    • Discipline 4: Identify Root Causes
    • Discipline 5: Choose Permanent Corrective Actions
    • Discipline 6: Implement Corrective Actions, Validate
    • Discipline 7: Systematize the Corrective actions (spread the learning to other areas)
    • Discipline 8: Formal Closure; Congratulate the team.
  • History: US Department of Defense in 1970’s as a Mil Standard; popularized by Ford.  Standard practice for many Quality Assurance programs.
  • When to use?: rapid problem solving and corrective action Customer complaints.  Process/manufacturing errors.  Part of a non-conformance assessment process.        


  • DMADV:  Define, Measure, Analyze, Design, Verify
  • DMEDI:    Define, Measure, Explore, Design, Implement
  • IDOV:      Identify, Design, Optimize, Verify
  • When to use?: designing or redesigning a process or product to a higher performance standard. When a new design is required.  “Goal” is      beyond the system entitlement.  When the current system is not designed to meet the desired outcome.
  • Tools/Terminology: QFD, MGP, VOC


What's similar between the methods?

·               Disciplined Phased approaches to problem solving

Common concerns/questions:

Can there be cases when more than one of these methodologies can be applicable?

What would happen if I choose the wrong methodology to approach a problem?   

Recap Episode                      

Use DMAIC when it's a deep rooted, complex problem, generally yield related. Use Lean to improve productivity and reduce waste. Use 8D for rapid problem solving and corrective action. Use DFSS when designing or redesigning a process or product to a higher performance standard.

***A variety of methods to choose from  - The E6S-Methods Toolbox Holds it All***"