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Continual Improvement Process by V. Narayana, N. S. Sreenivasan

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CHAPTER 7

Process Analysis: Interfering Factors and Action

The enemy of the best is good

– Stephen R. Covey

SYNOPSIS

Interfering factors are a major source of defect in process analysis. It is necessary to identify each interfering factor that may be of a potential nature, assess its impact, if any, on process and/or in-process product and devise corrective measures for both. These steps are illustrated with the help of an example from manufacturing industry.

Process interference

Any incident that happens sporadically in a process is process interference. Different types of sporadic incidents are known. But their occurrence in terms of frequency and timing are not known. Hence, they are termed as sporadic incidents. Each interference is potentially ...

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