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
Define Measure Analyze Improve Control
Most Commonly Used DMAIC Tools
Project Charter Control Chart Fishbone Diagram Countermeasures Matrix Control Chart
Histogram 5 Whys Action Plan
Pareto Chart
Less Frequently Used DMAIC Tools
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
Tree Diagram
Voice of the Customer
Work Breakdown Structure
Statistical DMAIC Tools
Descriptive Statistics Hypothesis Testing
ANOVA
Chi-Squared
t Test
Regression Analysis
Non-Parametric Tests

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