**D**efine **M**easure **A**nalyze **I**mprove **C**ontrol

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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