Six Sigma — Six Sigma Methodology Reference
Quick-reference for DMAIC methodology, statistical tools, control charts, and process capability.
When to Use
- Running a DMAIC improvement project
- Analyzing process capability (Cp, Cpk, Pp, Ppk)
- Setting up control charts (Xbar-R, p-chart, c-chart)
- Performing root cause analysis (fishbone, 5 Why, FMEA)
- Preparing for Six Sigma Green/Black Belt certification
Commands
intro
scripts/script.sh intro
Six Sigma overview — philosophy, sigma levels, belt system, history.
dmaic
scripts/script.sh dmaic
DMAIC phases: Define, Measure, Analyze, Improve, Control.
statistics
scripts/script.sh statistics
Key statistical concepts: normal distribution, hypothesis testing, regression.
charts
scripts/script.sh charts
Control charts: Xbar-R, Xbar-S, p-chart, np-chart, c-chart, u-chart, I-MR.
capability
scripts/script.sh capability
Process capability: Cp, Cpk, Pp, Ppk, sigma level, DPMO.
tools
scripts/script.sh tools
Six Sigma tools: fishbone, 5 Why, FMEA, Pareto, DOE, MSA.
examples
scripts/script.sh examples
Example DMAIC project walkthroughs.
checklist
scripts/script.sh checklist
DMAIC phase gate review checklist.
help
scripts/script.sh help
version
scripts/script.sh version
Configuration
| Variable | Description |
|---|---|
SIXSIGMA_DIR |
Data directory (default: ~/.sixsigma/) |
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