CBAP Question #327: Real Exam Question with Answer & Explanation

The correct answer is D. Cause-and Effect. The Ishikawa diagram is the formal name for the cause-and-effect (fishbone) diagram, named after the Japanese quality expert who created it. The other diagram types have distinct, unrelated purposes and are not associated with Ishikawa.

Question

Which of the following diagrams is known as Ishikawa diagram?

Options

AActivity
BData-flow
CCost-Benefit
DCause-and Effect

Explanation

The Ishikawa diagram is the formal name for the cause-and-effect (fishbone) diagram, named after the Japanese quality expert who created it. The other diagram types have distinct, unrelated purposes and are not associated with Ishikawa.

Common mistakes.

A. An activity diagram represents the flow of tasks or behaviors in a process or workflow and has no association with Kaoru Ishikawa or cause-and-effect analysis.
B. A data-flow diagram illustrates how data moves and is processed through a system during software or systems design and is entirely unrelated to Ishikawa's methodology.
C. A cost-benefit diagram is a financial decision-support tool used to compare projected costs against expected benefits and has no connection to Ishikawa or quality analysis.

Concept tested. Ishikawa diagram identification and terminology

Reference. https://asq.org/quality-resources/fishbone

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