KnowraSix SigmaLinked fromLinked fromThe 7 pages that link to Six Sigma, each with the reason it gives.All 7Related 5Compared with 2Lean manufacturingCompared with: Six Sigma emphasizes variation control, while lean foregrounds flow and waste; organizations often combine them.Statistical process controlRelated: Six Sigma projects may use SPC, but its scope extends beyond ongoing process monitoring.Theory of ConstraintsCompared with: Six Sigma targets variation and quality problems rather than necessarily the system’s capacity limit.Business process managementRelated: Its statistical tools support disciplined process improvement.Manufacturing engineeringRelated: Its improvement projects address recurring quality problems in production.Jack WelchRelated: Welch made Six Sigma a company-wide priority at GE in the 1990s.68–95–99.7 ruleRelated: Its name invokes six standard deviations, extending the same normal-curve coverage reasoning.