Digging for the Root Cause
Many Six Sigma practitioners use the term “root cause” without a clear concept of its larger meaning, and as a result, overlook root causes. Learn about the three tools you can use to avoid this mistake.
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Updated: August 21, 2008

Relay Revolution Relies on DFSS+
In 2004 when Wabtec embarked on the design of an electronic relay valve (ERV) for use in the braking systems of New York City subways, the company developed its Design for Six Sigma process, which today remains an important part of its new product development efforts.
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Updated March 28, 2008

Maximizing Product, Minimizing Costs
A case study on optimizing multiple product responses while controlling operating costs.
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Updated March 3, 2008

The 7th S
This article explores the evolution of 5S to expand its power and effectiveness for the Six Sigma practitioner.
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Updated January 3, 2008

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