Process analysis begins with identi

Process analysis begins with identifying and defining a new opportunity for improvement and ends with implementing and controlling a revised process, and which we capture through the Six Sigma Process Improvement Model. Other approaches to process improvement are statistical process control and process capability analysis, discussed in Chapter 3, “Quality and Performance,” and value stream mapping, discussed in Chapter 6, “Lean Systems.” We avoid overlap by covering each technique just once, while bringing out the essence of the approach covered in each chapter. The chapters do have a shared goal: better processes.Six Sigma Process Improvement Model: Figure 2.6 shows the Six Sigma Process Improvement Model, a five-step procedure that leads to improvements in-process performance. This model can be applied to projects involving incremental improvements to processes or to projects requiring major changes, including a redesign of an existing process or the development of a new process.The following steps comprise the model: