Six Sigma Traditional Quality
Decisions are driven by data Decisions are taken based on a combination of data and ‘gut feel’.
Control process inputs (Focus on X’s) Inspection method (Focus on Y)
Structured use of statistical tools to help in problem-solving No formal structure exists for the application of tools
Structured training in applied statistics Lack of structured training
Root cause approach Band-aid approach
Prevention over inspection Inspection over prevention

Six Sigma Characteristics

  • Customer centric
  • Process focused
  • Data-driven
  • Involvement and support of the top management
  • Cultural change
  • Breakthrough performance gains
  • Structured improvement deployment
  • Validation through key business results
  • Reduction in variation
  • Elimination of defects
  • Improvement in yield
  • Enhancement in customer satisfaction
  • Strengthening of the bottom line