CHAPTER 6Simplified Process Flow Diagram

What you will learn in this chapter, as in the previous chapter, is that it’s critical that you identify and examine all the possible causes of a problem. In addition to the fishbone diagram discussed in the previous chapter, you can use the simplified process flow diagram to help you identify key process input variables (KPIVs) in a process. But there’s a difference between these two tools.

It is important that you know where and when input variables affect a process so that you can see whether the identification of a particular variable as a factor makes sense given where the problem is being seen. Of special interest are positions in the process where inspection or quality sorting takes place or where ...

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