Six Sigma employs a five-step process called DMAI2C (Define, Measure, Analyze, Innovate & Improve, and Control).

Six Sigma Overview

• Definition of Six Sigma
• Definition of a defect
• Six sigma methodology (DMAI2C)
• Causal thinking
• The funneling effect

Define Phase

• Project selection
• Project charter
• SIPOC
• VOC
• CTQ tree
• Stakeholder analysis

Measure Phase

• Types of data
• Data collection plan and forms
• Basic statistics
• FMEA
• Types of variation
• Time series plot
• Control charts
• Frequency plots
• Scatter plots
• Process sigma

Analyze Phase

• Stratified frequency plots
• Scatter plots
• Flowcharts
• Cause-and-effect diagram
• Pareto charts

Innovate and Improve Phase

• People involvement matrix
• Generating solution ideas
• Cost benefit analysis
• Effort vs. impact plot
• Making a decision
• Pilot
• Implementing solutions

Control Phase

• PDCA cycle
• QC process chart
• Validation
• Process standardization
• Training
• Before and after
• Closure