Do Defects Really Matter?

Is 99.9% an acceptable tolerance for defects?


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From the Script: SLIDE 9 - Do Defects Really Matter?

What do these differences in defect rates really mean? Is there any significance to them?

To demonstrate the real impact of defects, let's consider the following:

Would you consider it acceptable for the following processes to be 99.9% reliable? Each 0.1% defect rate would result in an additional:

From these examples, I think we can see that it is in our best interest to limit our exposure to any more risk than is necessary... especially if its your business, your money, or, in the case of DOD, your life at risk.