About Six Sigma

  • Six Sigma is a structured, data-driven process of solving critical issues from a business perspective that we haven’t been able to solve with current methodology.
  • Six Sigma is the single most effective problem-solving methodology for improving business and organizational performance.
  • The common measurement scale is called the Sigma capability or Z and is a universal scale. It is a scale like a yardstick measuring inches or a thermometer measuring temperature.
  • The scale allows us to compare business processes in terms of the capability to stay within the quality limits established for that process.
  • The Sigma scale measures Defects per Million Opportunities (DPMO). Six Sigma equates to 3.4 defects per million opportunities.