When we talk about Six Sigma process, it refer to a process variation that at least 6x smaller than the gap of process center to its specification limit. In short, maintaining a small process variation is the key success factor of a process to achieve Six Sigma level.
A “Process”, is a series of activity arranged in sequence to from a product or service. Therefore, every single task we do in the shop floor could be part of the process, don’t forget, we introduce variation to the task we did. A small variation may not be critical to the process, but a big variation that we introduce, could be serious enough to result a process failure.
In fact, managing the Six Sigma program also involving a complicated process, especially in a multi-national company, where various peoples with different background, different culture, different interest and different leadership style meet together to form a so call “Management Team”. The process of bringing them together and get them align to a common Six Sigma Program direction is always complicated. From my previous experience, the variation within the management team members is anytime higher ( much higher ) than any process variation in the shop floor. A often I see Six Sigma program fail main due to one or two management team member who have different perception to the program.
Therefore, as program leader, while staying focus in minimizing the process variation in the shop floor to delivery great saving, you shouldn’t forget the variation introduce by the group of funny peoples who determine the overall program performance.
Ok… I will continue my story in the coming post… stay tune…