Part 1 of this series set the stage for a critical look at the way we prepare to run a designed experiment. It also demonstrated the use of control...
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25Aug
Why Six Sigma Is an All-or-None Proposition
The real cost-reduction benefits only start to appear when quality reaches very high levels. This relationship explains the commonly observed phenomenon of quality programs not paying off in the...
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22Aug
Using the Theory of Constraints to Choose Six Sigma Projects
If you choose the wrong projects it's possible to make big "improvements" in quality and productivity that have absolutely no impact on net profit.
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18Aug
Human Metrics in Six Sigma
Six Sigma teaches us to view everything as a process. We should take an objective look at the system, measure the values, form a model, enact changes on the...
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09Aug
Six Sigma, Data Mining and Dead Customer Accounts
In an interview with Quality Digest, Joseph M. Juran pointed out that quality needs to “scale up” if it is to remain a viable force in the next century....
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08Aug
The Truth About DOE, Part 1
Design of experiments (DOE) and robust design of products are key parts of the Six Sigma process. To stay competitive, we need to offer great products to customers and...
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04Aug
Thinking Outside the Box With PCA
A common problem with SPC is that the world appears too complicated for a statistical approach to work. In complex electronics products, for example, circuit boards may have thousands...
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03Aug
Preventing Hospital Falls with Six Sigma
Hospital processes produce many things. Most of them are desirable outcomes, such as healthy newborn babies, new hip joints, cancer-free patients and blood flowing freely through once-blocked coronary arteries....
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01Aug
When in Doubt, Get the X-Chart Out!
In other words, if all that are available are the percentages, the X-chart provides an excellent approximation to the P-chart.
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23Jul
Recognizing a Six Sigma Project Opportunity
Lean Six Sigma projects must help the organization achieve its goals. To accomplish this you must take action that guarantees that your project activities are directly linked to the...
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