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What is DMAIC? (Define Measure Analyze Improve Control)
DMAIC is the step-by-step method for developing Six Sigma projects and performance improvements:
- Define the operational problem (e.g., too much delay, too many defects or too much variation)
- Measure baseline KPIs (Key Performance Indicators)
- Analyze the root causes of defects or deviation
- Improve by implementing and validating countermeasures that eliminate root causes
- Control performance to sustain the improvement
Most Commonly Used DMAIC Tools in QI Macros |
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Define | Measure | Analyze | Improve | Control |
---|---|---|---|---|
Project Charter |
Control Chart | Fishbone Diagram | Countermeasures Matrix | Control Chart |
Histogram | 5 Whys | Action Plan | ||
Pareto Chart | ||||
Less Frequently Used DMAIC Tools in QI Macros | ||||
Critical to Quality (CTQ) Measures | Box and Whisker Plot | Cause/Effect Matrix | Control Plan | |
Flowchart |
MultiVari Chart | Design of Experiments | ||
Gantt Chart | Scatter Plot | FMEA | ||
SIPOC Diagram | Checksheet | Gage R&R (MSA) | ||
Stakeholder Analysis |
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Tree Diagram | ||||
Voice of the Customer | ||||
Work Breakdown Structure | ||||
Statistical DMAIC Tools in QI Macros | ||||
Descriptive Statistics | Hypothesis Testing |
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ANOVA | ||||
Chi-Squared | ||||
t Test | ||||
Regression Analysis | ||||
Non-Parametric Tests |
Learn More...
- DFSS - Design for Six Sigma
- Gage R&R (MSA) - Measurement Systems Analysis
- DMADV - Design Measure Analyze Design Verify
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