Root Cause Analysis Fishbone cause and effect diagram

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Cause and Effect Diagram
Description This template illustrates a Cause and Effect Diagram, also called a Fishbone or Ishikawa Diagram. A detailed discussion of Cause and Effect Diagrams can be found at Measurement Lab Error Materials Raw Materials Method Analytical Procedure Not Followed

Analyst Improper Calibration Calculation Solvent Contamination Supplier




Learn About C and E Diagrams
Instructions • Enter the Problem Statement in box provided. • Brainstorm the major categories of the problem. Generic headings are provided. • Write the categories of causes as branches from the main arrow. Learn More To learn more about other quality tools, visit the ASQ Learn About Quality web site.

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Iron Tools

Problem Statement

In lab

In lab

Dirty Bottles

Iron in Product Rust Near Sample Point Exposed Pipe Inexperienced Analyst Materials of Construction Rusty Pipes

Learn About Quality



At Reactor

Opening Lines

At Sample Point Heat Exchanger Leak E470

Iron Tools

E583 Environment Manpower Machine

This template was written for the American Society for Quality by Stat Aids Your feedback is welcome and encouraged. Please e-mail to: