What name(s) is (are) associated with the Plan-Do-Check-Act cycle?

The correct answer is C. Shewart-Deming. Shewhart-Deming (C) is correct because the Plan-Do-Check-Act cycle was originally developed by Walter Shewhart in the 1930s as a statistical quality control method, then popularized and refined by W. Edwards Deming (who sometimes called it the "Shewhart cycle"), making both…

Quality Management

Question

Options

APareto
BIshikawa
CShewart-Deming
DDelphi

How the community answered

(37 responses)

A
3% (1)
B
11% (4)
C
84% (31)
D
3% (1)

Explanation

Shewhart-Deming (C) is correct because the Plan-Do-Check-Act cycle was originally developed by Walter Shewhart in the 1930s as a statistical quality control method, then popularized and refined by W. Edwards Deming (who sometimes called it the "Shewhart cycle"), making both names legitimately associated with it.

Pareto (A) refers to the Pareto Principle (the 80/20 rule) and Pareto charts used to prioritize defects - a quality tool, but unrelated to PDCA. Ishikawa (B) is Kaoru Ishikawa, who developed the cause-and-effect (fishbone) diagram - another quality tool, but again not PDCA. Delphi (D) is a forecasting technique that uses iterative expert consensus, typically associated with project estimation, not quality improvement cycles.

Memory tip: Think "SD card" - Shewhart + Deming = the duo behind PDCA. Both were statisticians who shaped modern quality management, so the cycle carries both their names.

Topics

#PDCA cycle#Deming cycle#quality improvement#Shewhart

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