Six Sigma — Six Sigma Methodology Reference

---

name: "sixsigma"

version: "1.0.0"

description: "Six Sigma methodology reference — DMAIC process, statistical tools, control charts, and capability analysis. Use when running improvement projects, analyzing process variation, or preparing for Six Sigma certification."

author: "BytesAgain"

homepage: "https://bytesagain.com"

source: "https://github.com/bytesagain/ai-skills"

tags: [six-sigma, dmaic, quality, statistics, process-improvement, industrial]

category: "industrial"

---

# Six Sigma — Six Sigma Methodology Reference

Quick-reference for DMAIC methodology, statistical tools, control charts, and process capability.

When to Use

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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