8.1 General

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In Chapter 6, you expanded the original causes to include additional causes

necessary to solve the problem at hand. In addition, you probably expanded the

causes to include those that are unique to your product area, customer, or

product. Finally, you ordered the new causes into categories that are meaningful

to you.

Now is the time to evaluate those causes you have chosen and ordered. The

point of evaluation, of course, is to add a quantitative dimension to the causes

that permits you to select the most important cause(s).

Table 8-1 summarizes the purpose of each of the techniques that will be

talked about in this chapter.

You must be the judge of which and how many of these techniques you need

to use for your particular problem set. Base your choice on the purpose of each

of the techniques as shown in Table 8-1.

T a b l e 8 - 1 — A n a l y s i s T e c h n i q u e s

Analysis Technique Purpose

Pareto Analysis To select the 20 percent of the issues that provide 80 percent of

the results

Force Field Analysis To understand restraining forces and driving forces

Failure Mode Effect Analysis (FMEA) To predict potential failures

Monte Carlo Simulation To refine estimates