Cause-and-Effect Root Cause Analysis
Developed by Kaoru Ishikawa, the Cause-and-Effect diagram organizes brainstorming sessions during the Analyze phase of Lean Six Sigma.
Foundational Category: Problem Solving & Improvement • ~6 min read
Shared Enterprise Tool
Ishikawa Fishbone Diagram (Cause & Effect)
Facilitate team brainstorming sessions to structure all plausible contributing causes to a quality defect.
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Q:
What are the 6M categories in an Ishikawa Fishbone diagram?
The standard manufacturing 6Ms are: Machine, Method, Material, Manpower, Measurement, and Milieu (Environment).
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Ishikawa 6M Diagram
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These tools and calculators are intended for engineering analysis, educational study, and operational guidance. They do not constitute formal regulatory certification (such as medical, aerospace flight-critical, or statutory safety filings) without independent audit and sign-off by a certified Quality Engineer or Six Sigma Black Belt. AshToolbox is not affiliated with, sponsored by, or endorsed by AIAG, ISO, ASQ, or any standards body.
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