1. Six Sigma Green Belt Certification
Greater Houston Section
Six Sigma Green Belt Certification
Bryan Dodson
23 March 2017

2. SSGB certification overview
What is a Six Sigma Green Belt?
Analyzes and solves quality problems
Involved in quality improvement projects
Certification requirements
Three years of work experience in a SSGB BOK area
Pass four hour, 100 question exam
Cut score of 550 out of 750
Benefits
Personal growth – force yourself to learn something new
ASQ SSGBs earn 2.6% more than those with no certification 2

3. SSGB Body of Knowledge Six Sigma and the Organization (15 Questions)
Six Sigma–Define (25 Questions)
Six Sigma–Measure (30 Questions)
Six Sigma–Analyze (15 Questions)
Six Sigma–Improve and Control (15 Questions) 3

4. Design for Six Sigma

5. Variation is everywhere
Changes in production operators
Changes in lots of raw materials
Tool wear
Machine maintenance
Seasonal climatic changes
Supplier changes
New designs
must include
consideration
for variation in
user & manufacturing
conditions 5

6. Still, Most Engineers Think Nominal
Engineers are taught to design to nominal
Maximize horsepower
Minimize noise
Achieve the targeted power in a circuit
Variation is controlled with tolerances 6

7. Variation influence on the Optimum
Figure is from Isight 7

8. Circuit Example P = V2/R Voltage (V) is Normally distributed
mean = 12
standard deviation = 0.1
Resistance (R) is Normally distributed
mean = 2
standard deviation = 0.2

9. Statistical Bias

10. Statistical Bias

11. Save SideShow Bob’s life
2000 feet
Robert Underdunk Terwilliger, better known by his stage name Sideshow Bob, is a recurring character in the animated television series The Simpsons.
The person Krusty got to replace Sideshow Bob. Even though Mel talks like a pretty intelligent person, maybe a little overdramatic, all he's allowed to do on the show is blow a whistle and get blown out of a canon.
2000 feet (500 metres) to the centre of the pool. Takes place in a vacuum – ignore wind resistance in all calculations.
Discuss the tolerance they suggest => ± 50 feet (15 m), otherwise Bob would be killed
Pool is 200 feet long
Copyright the Simpsons
Projectile animation

12. Response Sensitivity Tolerance considerations Distance Angle
Smaller spread
Tolerance considerations
Spread in distance
Distance
If you set the angle on 15 degrees with a spread of 5 degrees, the spread will be large in comparison with if you set the angle to 45 degrees and also with a spread of 5 degrees. 10 20 30 40 50 60 70 80 90
Angle

13. System characteristics
Properties of means and variances of functions of several variables, where y = f(x1, x2, x3, ..., xn).
An approximation for the mean of a function of several variables is:
An approximation for the variance of a function of several variables is:
See for first and second order derivatives.

14. Fly by Wire Example
Cost was reduced by 32% while the process capability was increased by 132%
12 November 2018

15. Case Studies Design team did not model and optimize variation
Design team did model and optimize variation

16. Questions