Introduction Flashcards
What is the vision of 6-sigma?
Zero defects
3.4 DPMO
What is the difference between Lean & 6-sigma?
Lean: waste reduction, flow faster, Toyota
6-sigma: reduce variation, reduce defects, Motorolla
What is the structured approach for existing processes?
DMIAC
What is the structured approach for new processes?
DMADV
What does DMAIC stand for?
Define, measure, analyze, improve control
What does DMADV stand for?
Define, measure, analyze, design, validate
What question does the DEFINE phase answer?
What is the problem?
What question does the MEASURE phase answer?
How big is the problem?
What question does the ANALYZE phase answer?
What causes the problem?
What question does the IMPROVE phase answer?
How to solve the problem?
What question does the CONTROL phase answer?
How to ensure sustainability?
Statistically what does 6-sigma mean (In % & DPMO)?
99.99966% or 3.4 DPMO
When are gate reviews needed?
At the end of every DIMAC phase.
What is required in a gate review?
Presentation of results; different for each phase of the DMAIC cycle
Who is required to participate in gate reviews?
GB/BB, MBB, sponsor (mandatory)
team (optional)
How long is a typical gate review?
~1 hour
How long is a green belt project?
90-120 days
What is the criteria for a 6-sigma DMAIC project?
Existing process
Existing pain
Unknown causes
Unknown solutions
Sponsor
Team
90-120 days
Let’s discuss standard deviation. On a bell curve, what % equates to each sigma level?
1s = 68%
2s = 95% (z: 1.96 for sampling)
3s = 99.7%
6s = 99.99966
Core processes need a minimum of what sigma?
+/- 3s
Where does the pain for a six-sigma process come from? What is the name to help you remember?
Time, cost, and quality.
Business cares about time and cost.
Customer cares about quality.
OTOBOS - On time. On budget. On spec.