[KEY] DMAIC (Six Sigma) Project Matrix Data Sheet
- Kriss Nakhon
- Jul 17, 2025
- 2 min read
structured matrix data sheet for DMAIC (Six Sigma) projects, tailored for automotive/manufacturing quality improvement. It includes key phases, deliverables, tools, and metrics:
DMAIC (Six Sigma) Project Matrix Data Sheet
Project Title: [E.g., "Reducing Car Hood Paint Defects"]Team: [Cross-functional members]Date: [Timeline]
DMAIC Phase | Key Deliverables | Tools & Techniques | Data Metrics | Output Examples |
Define (D) | - Project charter (SIPOC, VOC). - Stakeholder alignment. | - Voice of Customer (VOC). - SIPOC diagram. | - Baseline defect rate (e.g., 12% paint flaws). - Cost of poor quality (COPQ). | Goal: Reduce defects by 50% in 6 months. |
Measure (M) | - Data collection plan. - Process maps. | - Check sheets. - MSA (Gage R&R). - Process capability (Cp/Cpk). | - Defect types/rates (Pareto chart). - Cycle time data. | Finding: 80% defects from primer contamination (MSA confirmed gauge accuracy). |
Analyze (A) | - Root cause verification. - Statistical validation. | - 5 Whys. - Fishbone diagram. - Hypothesis testing (t-test, ANOVA). | - Correlation analysis. - RPN (if FMEA used). | Root Cause: Poor supplier primer storage (p<0.05 in ANOVA). |
Improve (I) | - Pilot solutions. - DOE (Design of Experiments). | - Poka-yoke. - FMEA updates. - Simulation software. | - Pilot results (e.g., defect reduction to 4%). - Cost-benefit analysis. | Solution: New primer drying protocol + supplier audit. |
Control (C) | - Standardized SOPs. - Control plan. | - SPC charts. - Control plans. - Training docs. | - Sustained defect rate (e.g., 3% ±0.5%). - CpK >1.33. | Sustained Result: Saved $180K/year, 6σ compliance. |
Automotive-Specific Additions
IATF 16949 Alignment:
Control Plan: Maps inspection points to critical characteristics (e.g., hood thickness).
PPAP: Documents DMAIC changes for customer approval.
Critical Tools:
MSA: Ensures measurement accuracy for defects (e.g., paint thickness gauges).
DOE: Optimizes parameters (e.g., oven temp, spray pressure).
Metrics:
DPMO (Defects Per Million Opportunities).
FTY (First-Time Yield) for stamping/welding processes.
Example Data Inputs & Outputs
Phase | Input Data | Analysis Output |
Measure | 500 hoods inspected, 60 defects. | Pareto shows 70% defects from dust particles. |
Analyze | Primer viscosity lab tests. | Low viscosity correlates with defects (R²=0.89). |
Improve | Pilot batch with new primer. | Defects dropped to 8/500 (84% improvement). |
Templates & Software
Project Charter Template: [Link]
SPC Chart (X-bar R): [Example]
Software: Minitab (statistics), JMP (DOE), Power BI (dashboards).
Key Takeaways
Data-Driven: Relies on statistical validation (e.g., p-values, CpK).
Structured: Phases ensure thorough RCA and sustainable fixes.
ROI Focused: Tracks cost savings (e.g., reduced scrap/rework).
Need a completed DMAIC example (e.g., Excel/PDF) or industry-specific KPIs
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