- 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
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?
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***"