UNIVERSITAS KOMPUTER UNIVERSITAS KOMPUTER INDONESIA
INDONESIA
Chapter 7a: USE OF SIX SIGMA IN
OPERATIONAL RISK
Dr. Ir. Yeffry Handoko Putra, M.T
Chapter 7a: USE OF SIX SIGMA IN
OPERATIONAL RISK
Dr. Ir. Yeffry Handoko Putra, M.T
[TAR] Chap 15
What is Six Sigma
managerial concept combining Lean and Six Sigma that results in the elimination of the seven kinds of wastes / muda (classified as Transportation, Inventory, Motion, Waiting, Overproduction, Over-Processing, and Defects) and provision of goods and service at a rate of 3.4 defects and provision of goods and service at a rate of 3.4 defects per million opportunities (DPMO). A mnemonic for the wastes is "TIMWOOD".
In real-world terms, this means that 99 percent good (a traditional standard in business) is no longer good enough
HOW GOOD?
Six Sigma is
is a management philosophy and culture that passionately embraces defect-free process performance across the
business;
is a disciplined, fact-based problem-solving methodology that focuses on producing reliable and consistent results that
focuses on producing reliable and consistent results that meet customer and stockholder expectations; and
is a stretch goal. Six sigma companies strive to deliver services, products, and profitable results, consistently within expectations—every time.
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THE SIX SIGMA METHODOLOGY
Process owner. This individual is responsible for a process
Champion. This individual could be the process owner
Six sigma green belt. This person is a part-time employee who has undergone one to two weeks of training in the six sigma methodology
sigma methodology
Six sigma black belt . This person is a full-time employee who is essentially the project manager in a six sigma project
Master six sigma black belt . This individual is a full-time employee who has the responsibility to manage the
education, training, and promotion of the program.
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FIVE STEPS IN SIX SIGMA (DMAIC)
1. Define
2. Measure
3. Analyze
4. Improve
Example Tolgate DMAIC
5. Control
57
FIVE STEPS IN SIX SIGMA (DMADV)
1. Define
2. Measure
3. Analyze
4. Design
5. Validate
A key point to remember when doing a six sigma project is that the DMAIC project should last only 12 to 16 weeks
(which requires a small, well-defined project), whereas a DMADV or redesign might take years.
Tools in Six Sigma
Normal Curve
Descriptive statistics Histograms
Pareto charts
Line and run charts Scatter plots
Control charts
ORGANIZATION APPROACH
