Fuzzy Control Chart A Better Alternative for Shewhart Average Chart

This paper through a real illustrative example and a power test shows that designing
a fuzzy control chart for process average of a continuous (variable) quality characteristic
with a warning line is a better alternative to Shewhart ¯X chart in many respects, like providing
better neural view to inspectors, offering different strategic options for company to
choose, detecting the desire shifts more quickly, and more sensibility to small shifts without
any complexity augmentation to the chart.