Six Sigma - Wikipedia, the free encyclopedia
1 Doctrine 2 Methodologies 2.1 DMAIC 2.2 DMADV or DFSS 2.3 Quality management tools and methods 3 Implementation roles 3.1 Certification 4 Etymology of "six sigma process" 5 Role of the 1.5 sigma shift 5.1 Sigma levels 6 Software 7 Application 8 Criticism...