Not every organization that has launched a Six Sigma initiative has obtained the financial benefits it anticipated. Among those that have achieved significant financial benefits, some have certainly done better than others.
In Chapter 2 we reviewed four specific companies' experiences with Six Sigma, and based on these examples we identified the key success criteria for the overall Six Sigma initiative in Chapter 3. These key success criteria were:
Each successful deployment of Six Sigma that we are aware of has had each of these criteria. Similarly, the root causes of each less-successful deployment ...