Six Sigma originally arose as a strategic initiative by the US company Motorola in 1987. The starting point here was the knowledge that the throughput yield in process chains can be small, even if the throughput of individual process steps is high, i.e. over 99% (“theory of the weakest link”). Based on this knowledge, Six Sigma began its “triumphal march”, which continues unabated today, in the early 1990s. Renowned US companies such as Kodak, Allied Signal, and General Electric recognized the power of Six Sigma as a breakthrough methodology to achieve the elementary external goals of a company. This primarily included the orientation of business activities to increasing the customer benefit and customer satisfaction.