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SigmaPro Publications

In support of your Lean, Lean Six Sigma, and Design for Six Sigma (DFSS) business transformation efforts, SigmaPro is pleased to provide access to the following technical publications.  These publications include Design for Six Sigma deployment, Design for Six Sigma project identification and selection, Axiomatic Design, requirements definition, multivariate statistical process control, measurement systems analysis, risk analysis, Lean Six Sigma deployment, Lean Six Sigma project identification and selection, and much more.

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Dr. Douglas Mader

November 01, 2009

The Right Decision

This paper details the use of Economic Value Added (EVA) as a metric that is critical to selecting the right lean six sigma projects for the organization. The concept of Delta EVA is utilized to facilitate quick and easy solutions.
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Ben Clegg

July 01, 2009

A Study into the Effectiveness of Quality Management Training

Purpose – The purpose of this paper is to investigate the effectiveness of quality management training by reviewing commonly used critical success factors and tools rather than the overall methodological approach. Design/methodology/approach – The methodology used a web-based questionnaire. It consisted of 238 questions covering 77 tools and 30 critical success factors selected from leading academic and practitioner sources. The survey had 79 usable responses and the data were analysed using ...
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Dr. Douglas Mader

August 01, 2008

What Comes After the Low-Hanging Fruit?

This paper contrasts various deployment approaches for Lean and Lean Six Sigma based on the assumption that the "easy" improvement projects have already been accomplished.
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Dr. Douglas Mader

January 01, 2008

The Evolution of Lean Six Sigma

This paper provides a number of key ideas pertaining to the successful deployment of various models for improvement including Lean, Lean Six Sigma and traditional Six Sigma. Training curricula are contrasted for maximum results.
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Dr. Douglas Mader

July 01, 2007

How to Identify Lean Six Sigma Projects

This paper discusses how to identify and select high priority lean six sigma projects in conjunction with the strategic planning process and policy deployment. The concepts involved are key to business transformation based on process improvement.
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Dr. Douglas Mader

July 01, 2006

Deploying the 'D' in DFSS

This paper provides a number of key ideas pertaining to the successful deployment of Design for Six Sigma, how to successfully execute DFSS training, some common pitfalls to avoid in DFSS deployment, and the standard DFSS training body of knowledge.
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Dr. Douglas Mader

August 01, 2005

Axiomatic Design and Design for Six Sigma

This paper provides an overview of Axiomatic Design, and it provides the linkage of Axiomatic Design to Design for Six Sigma and transfer function modeling. A practical approach is presented so that non-engineers can successfully utilize Axiomatic Design to examine and optimize coupling for the design of a new product, process or service. An overview of requirements decomposition is also presented.
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Dr. Douglas Mader

July 01, 2004

How to Select Design for Six Sigma Projects

This paper provides an overview of how to select design for six sigma (DFSS) projects as part of the portfolio management process. Design programs are typically evaluated based on Net Present Value (NPV) and Expected Commercial Value (ECV). This paper introduces the concept of Delta ECV for selection of DFSS projects.
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Dr. Douglas Mader

July 01, 2003

Design for Six Sigma and Your Current Design Process

This paper provides an overview of how to implement successful Design for Six Sigma (DFSS) training for manufacturing, R&D, and service organizations. The paper also describes how service organizations can benefit from DFSS and how Service DFSS training needs to be customized according to the design environment.
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Dr. Douglas Mader

July 01, 2002

Design for Six Sigma

This paper provides an overview of the deployment issues and tools involved in successfully implementing Design for Six Sigma (DFSS) within your organization.
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Dr. Douglas Mader

January 01, 1999

The Economic Impact of Measurement Error

Interpretation of the results of a gauge repeatability and reproducibility (R&R) study relies on two key metrics -- the combined gauge R&R as a percent of specification and the discrimination ratio. These metrics are useful in terms of the rules of thumb that have been developed over the years, but they fall short of effectively quantifying how well the measurement system will perform in a production environment. For any measurement system, the alpha (or producer’s) risk is defined to be the pr...
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Dr. Jack Prins

January 01, 1998

Multivariate Control Charts for Grouped and Individual Observations

Quality control and process control are based on data that are sequentially collected. The collection is displayed and analyzed, either in "real time", which means that a very fast program works on the data as soon as they are generated, or later after perhaps some cleaning up. It is a fact of life that most data are naturally multivariate. The classical Shewhart approach, dating back to 1924, tracked one variable by detecting shifts in the mean or variance with the assistance of contr...
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Dr. Douglas Mader

January 01, 1997

An Application in Multivariate SPC for Power Supply Calibration

This paper describes an application in real-time multivariate statistical process control for the automated power calibration of a family of high-energy power supplies. Subsequent to a variance-stabilizing transformation, data for the actual power produced by each unit under test is regressed on the specified input power over the operating range. The slope and intercept from the simple linear regression are then compared to the bivariate normal distribution for slope-intercept pairs from previou...
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