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FISHBONE DIAGRAM Gerald Cerrato Lean Six Sigma Black Belt

Presentation Objectives � The objectives are � Provide a brief history of the Fishbone diagram � Introduce the viewer to this problem-solving tool � Demonstrate how to build a Fishbone Diagram Identify the 6 Ms � Discuss strategies for using the Fishbone

Brief History � � Created by Kaoru Ishikawa in 1968 Other common names include Ishikawa Diagram � Cause and Effect Diagram � Concept � � Graphical representation of potential causes Identify the effect Identify potential causes Place potential causes under common predetermined categories (6 Ms) � 6 Ms discussed on next slide

Getting Started Problem Summary/ Statement or Effect

Getting Started Machine Material Man (operator) KPI = Key Performance Indicators. Problem Summary/ Statement or Effect Methods Measurements Mother Nature

Getting Started Machine Material Man (operator) *You do not need to fill out each category for every problem Problem Summary/ Statement or Effect Methods Measurements Mother Nature

Strategies � Brain Storming � � � Assemble a cross functional team Use posits to capture potential causes and place them on the correct bone (Man, Machine, Material etc. ) Brain Writing � Have individuals spend 15 minutes contracting a list on their own � Set up a meeting to discuss the ideas � Benefits Prepares everyone Encourages quiet members to speak Gauge consensus

Strategies Continued � Genba Walk � Genba (Japanese word meaning the real place) � Observe the process that created the effect � Focus your problem-solving abilities

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