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#

bash

scripts/script.sh intro

Six Sigma overview — philosophy, sigma levels, belt system, history.

dmaic#

bash

scripts/script.sh dmaic

DMAIC phases: Define, Measure, Analyze, Improve, Control.

statistics#

bash

scripts/script.sh statistics

Key statistical concepts: normal distribution, hypothesis testing, regression.

charts#

bash

scripts/script.sh charts

Control charts: Xbar-R, Xbar-S, p-chart, np-chart, c-chart, u-chart, I-MR.

capability#

bash

scripts/script.sh capability

Process capability: Cp, Cpk, Pp, Ppk, sigma level, DPMO.

tools#

bash

scripts/script.sh tools

Six Sigma tools: fishbone, 5 Why, FMEA, Pareto, DOE, MSA.

examples#

bash

scripts/script.sh examples

Example DMAIC project walkthroughs.

checklist#

bash

scripts/script.sh checklist

DMAIC phase gate review checklist.

help#

bash

scripts/script.sh help

version#

bash

scripts/script.sh version

Configuration#

VariableDescriptionSIXSIGMA_DIRData directory (default: ~/.sixsigma/)

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