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Dewey Dorsett

Dewey is an Executive Consultant at OT Consulting Group and has consulted and delivered outstanding results to clients in manufacturing and service industries for 16 years using Lean, and Six Sigma Supply Chain deployments in both domestic and international environments. Prior to consulting, he worked in manufacturing industries in quality, productivity and sales capacities.
Lean Six Sigma Q&A - GoLeanSixSigma.com

How it is possible to calculate CP or CPK if I have non-normal data?

The non-normal calculation is based on the maximum likihood estimate of the distribution parameters rather than the mean and variance associated with the normal distribution. These parameters estimate the distribution proportions for the capability calculation. For example, a Gamma distribution is defined by shape, scale and theshold parameters. A Poisson distribution is defined by Lambda,…
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Lean Six Sigma Q&A - GoLeanSixSigma.com

How is value determined in a Lean system?

Here’s a simple and brief answer to a meaty subject. Value in a Lean system is created through the elimination of waste and the transference of time and resources from non-value adding process activities to value-adding activities. Waste is definitional and comprises anything NOT needed in the creation and delivery of product or service to…
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How To Visualize An Improved Version Of Your Process

The “To Be” or Future State of the process is a critical component of the Lean methodology and the Value Stream mapping exercise.  It is a powerful exercise that strokes the imagination and helps break free from the current inhibitors of the current state which are contributing to any one…

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How To Apply 5S: Work Station - GoLeanSixSigma.com

How to Apply 5S: Work Station

5S is a fundamental pillar of a Lean deployment. The 5S exercise captures core principles of the Lean philosophy that facilitate the extension and development of a lasting lean implementation. Think of it as the foundation upon which a house is built upon. While some think of it as a…

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Using A SIPOC To Leverage Control And Influence - GoLeanSixSigma.com

Using a SIPOC to Leverage Control and Influence

We spend countless time in meetings discussing roles, responsibilities and accountabilities. Yet, I find managers and associates still have misunderstandings about what they’ve been asked to do and what it is they are responsible for. A tool I use when implementing Lean Six Sigma that leaders, managers and associates have…

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