What is 6 Sigma?
Simple meaning
- Reduce total defects
- Eliminate the critical opportunities for defects
Complex meaning
- Vision & Philosophy
- Metric (Standard of measurement)
- Benchmark
- Method
- Tools for:
Customer focus
Breakthrough improvement
Continuous improvement
People involvement
- Aggressive goals

In the process capability point of view sigma means
Sigma Defect per million opportunity(ppm)
2 308,537
3 66,807
4 6,210
5 233
6 3.4
In the other way around in term of yield
Sigma Process Yield
2 69.1%
3 93.32%
4 99.379%
5 99.9767%
6 99.99966%

What causes defect?
- Excess variation due to:
a) Processes
b) Supplier variation
c) Unreasonably tight specifications(tighter than the customer
requirement.

Six Sigma only works when Leadership is passionate about excellence and
willing to change.
- Fundamentals of Leadership
* Challenge the process
* Inspire a shared vision
* Enable others to act
* Model the way
* Encourage the heart
- Six Sigma is a catalyst for leaders

Leadership is ......

"A true leader has the confidence to stand alone,
the courage top make tough decisions, and the
compassion to listen to the needs of others. He does not set
out to be a leader, but becomes one by the quality of his actions
and the integrity of his intent".