Eight Essential Tools for Six Sigma

Eight Essential Tools by Ron Snee, Quality Progress:

In my experience, eight tools are used most frequently in Six Sigma projects - all eight use statistical thinking and methods. The tools are: process maps, cause and effect matrices (CE), failure mode and effects analysis (FMEA), measurement system analysis (MSA), process capability studies, multi-vari studies, design of experiments (DOE) and process control plans.

Ron is the co-author of 2 excellent books on Six Sigma:

• Six Sigma Beyond the Factory Floor: Deployment Strategies for Financial Services, Health Care, and the Rest of the Real Economy by Ron D. Snee and Roger W. Hoerl, 2004.
  
• Statistical Thinking : Improving Business Performance by Roger Hoerl and Ronald D. Snee, 2001. A great book on how to apply statistical thinking to improve business results. More details on Statistical Thinking.

and many articles:

• More articles by Ron Snee