Six Sigma and Lean Six Sigma both topics are same. Lean six sigma is the beginning of six sigma. It is understood that,
when you refer the six sigma, lean is done! ASQ treats six sigma as the lean six sigma
only.
There is nothing like lean six sigma in ASQ. Without lean six sigma, six sigma can not
start. Lean six sigma focuses on reducing the waste, while six sigma reduces the
defects!
