Tools for Lean Six Sigma

Six Sigma Simplified methodology

Give me a lever long enough and I can move the world.

Gathering Numeric Data

  • Are you gathering data that you can count, like number of people or defects? Yes
  • Are you gathering data that you can measure, like money, length, weight, or time? Yes

Graphing Data

  • Is your data measured periodically over time (minute, hour, day, project, event)? 
    Use a line graph
  • Are you using data to focus the improvement effort? 
    Use a Pareto Chart or pie chart
  • Are you trying to prove a cause-effect relationship between two variables (e.g., calories consumed and weight gain? 
    Use a Scatter Plot
  • Are you trying to determine the stability of the process? 
    Use a Control Chart
  • Are you trying to determine the capability of the process? 
    Use a Histogram
  • Are you comparing data year over year or month over month? 
    Use a Bar Chart

Organizing verbal or written data

  • Are you trying to simplify a large number of written ideas? 
    Use a Affinity Diagram
  • Are you trying to determine the driving issues among the simplified data? 
    Use a Relationship Diagram
  • Are you trying to create links from higher level ideas or activities to more detailed ones? 
    Use a Tree Diagram
  • Are you trying to evaluate the relationship between two sets of tangible criteria? 
    Use a Matrix Diagram
  • Are you trying to evaluate the possible failure or fault points? 
    Use a PDPC Chart or EMEA/FMEA--Error Modes and Effects Analysis
  • Are you trying to create a sequence of activities? 
    Use an Arrow Diagram

Key Tools for Focusing The Improvement Effort

Six Sigma Tree Diagram Line Graph Six Sigma Pareto Chart


Key Tools for Improving the Process and Problem Solving

Six Sigma Fishbone, Ishikawa, Cause-Effect Diagram Solution Selection Matrix Action Plan

Additional Tools for Improving the Process

Systems Thinking Diagram Scatter Diagram
Bar Chart Pie Chart 


Key Tools for Sustaining Improvement--Process Management

Flow Chart  Control Chart  Histogram with Cp and Cpk 


Tools for Data Collection

Checksheet Data sheet  Matrix 


Tools for Teamwork

Affinity Diagram Relation Diagram Matricies 

Do you need to:


Create these charts and diagrams in just seconds using QI Macros for Excel...