Online Fishbone Diagram Generator

Add potential causes of the defect using the 6M categories. Check the verified root causes and generate a PDF for your 8D report.

Fishbone Diagram

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Man
Machine
Material
DEFECT
Method
Measurement
Environment
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Verified Root Causes (to be exported to PDF):

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    What is a Fishbone Diagram (Ishikawa) and how does it help?

    The Fishbone diagram (often called the Ishikawa diagram) is one of the seven basic tools of quality. It is used for visual Root Cause Analysis (RCA). By graphically breaking down a problem into the main 6M categories, it makes it easier for teams to uncover the true origin of a nonconformity rather than stopping at superficial symptoms.

    When should you use a Fishbone diagram in practice?

    • When analyzing customer claims and compiling 8D reports (typically in the D4 phase) in the automotive industry.
    • As a necessary prerequisite for the 5-Why method. You select the most likely causes from the Fishbone diagram and apply deeper questioning to them.
    • During brainstorming and process audits to uncover hidden risks, whether you are addressing a process drop-off or investigating why a visual inspection failed to catch a planted test piece (e.g., a Red Rabbit).

    How to create a Fishbone diagram online (6M method)

    Enter the specific problem into the "head" of the fishbone in our generator. Then, brainstorm with your team all possible influences and assign them to the respective bones: Man, Machine, Material, Method, Measurement, and Environment (Mother Nature). Check off the verified root causes and generate a professional PDF document for your customer or internal audit.