Analyze Outline Stratify Opportunity Discrete Date – Pareto Continuous Date – SOV (Source of Variance) Define Problem: 5W2H Analysis Potential Root Cause Identify Potential Root Cause: Fishbone Screen Potential Root Cause: FMEA and CE Matrix Drill Down Potential Root Cause: 5 Why’s Update Data Collection Plan Verify Root Causes Comparative Methods Correlation/Regression Summary of Validated Factors Stratify Opportunity Potential Root Cause Verify Root Cause Summary 1 Stratify Opportunity Stratify Opportunity Potential Root Cause Verify Root Cause Summary Type of CTQ/CTP? Focus on Problem Solving Focus on Variation Reduction Discrete Continuous Excessive Variation results in Discrete Defects – is our discrete CTQ/CTP linked to a continuous variable? Sources of Variation (Multi-Vari) Tools to Identify and Prioritize: Cause & Effect Diagram Cause & Effect Matrix 5 Why’s FMEA Tools to Validate: Comparative Methods DOE/Pilot Stratification (Pareto Analysis) Root Cause Analysis Dominant Sources of Variation ID X’s ID X’s 2 Stratify Opportunity Stratify Opportunity Potential Root Cause Verify Root Cause Summary Pareto Analysis (If Y is discrete data) Key Findings & Conclusions: 3 Stratify Opportunity Stratify Opportunity Potential Root Cause Verify Root Cause Summary Multi-Vari Analysis/ANOVA (If Y is Continuous data): Tree Diagram and Multi-Vari Chart 97 98 99 100 101 102 103 U1 U2 U3 time: # 1 - unit Measurement
U1 U2 U3 time: # 1 - unit Standard Deviation 97 98 99 100 101 102 103 U1 U2 U3 time: # 2 - unit
U1 U2 U3 time: # 2 - unit 97 98 99 100 101 102 103 U1 U2 U3 time: # 3 - unit
