Six Sigma versus Traditional Quality

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