Company-wide Six Sigma programs ensure a comprehensive and sustainable improvement of business processes by Six Sigma projects. These projects can relate to current weaknesses in the quality, availability or consumption of inputs and resources and to challenges of the future, e.g. to cope increasing demand with existing resources.

Six Sigma and Lean Thinking are two complementary approaches to process improvement. It is therefore pointless to regard them as competitors. However, it is not always immediately clear whether a specific process problem should be dealt with Six Sigma or with Lean methods.