Articles by Forrest W. Breyfogle III

Shifting the Paradigm: Enhancing Process Capability Reporting

The following presents an alternative to Cp, Cpk, Pp, Ppk process capability indices.
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Issues With Cp, Cpk, Pp, Ppk Process Capability Indices Reporting

For regions of stability, process capability indices can be used to describe how the process is performing relative to specification limits.
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Management: Lean's Integration in an Enhanced Business Management System

Organizations need an effective business management system for addressing the challenges of the day.
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Shifting the Paradigm: Why Individuals Control Charts Are Often Better Than X-Bar and R Charts

The question that one might ask is, "which control charting technique is most appropriate?" My response to this question is, it depends on how you categorize the source of variability relative to common and special causes.
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Shifting the Paradigm: Control Charting Issues: Comparing an X-bar and R Control Chart With an Individuals Control Chart

In this blog and the next few blogs, I will expand upon the 30,000-foot-level methodology.
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Shifting the Paradigm: Overcoming AQL Shortcomings

A test that samples and makes process statements from a 30,000-foot-level metric vantage point can provide more insight with less test effort than AQL testing.
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Shifting the Paradigm: Assessing The Effectiveness of AQL In An Organization

If AQL testing is commonplace in an organization, consider viewing the AQL’s department activity as a process where input to the process is various types of batches that enter this process.
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Shifting the Paradigm: Does AQL Testing Answer the Wrong (Not Best) Question?

Sometimes we might be wasting too many resources attempting to answer the wrong question with much accuracy, or to the third decimal place.
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Example That Highlights Challenges With Acceptable Quality Level (AQL) Testing

A previous blog, AQL (Acceptable Quality Level) sampling can be deceptive, described issues with AQL testing. This blog will elaborate more on this point using an example.
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Shifting the Paradigm: Acceptable Quality Level Sampling Can Be Deceptive

In business, there are many pink elephant-in-the-room issues, which are not typically discussed. These unchallenged practices or policies often lead to behaviors that result in very unhealthy unintended consequences.
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Charles J. Hellier has been active in the technology of nondestructive testing and related quality and inspection fields since 1957. Here he talks with Quality's managing editor, Michelle Bangert, about the importance of training.
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