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DIAGNOSTICS 10

system. The various stages of knowledge acquisition (obtained from the experts)
are outlined in Figure 10.13. It can be seen from this illustration that several
iterations are required to complete the knowledge acquisition. Thus, the
process of interviewing experts is a continuing process.
Not to be overlooked in the development of an expert system is the
personal relationship between the experts and the knowledge engineer. The
experts must be fully willing to cooperate and to explain their expertise to the
knowledge engineer if a successful expert system is to be developed. The
personalities of the knowledge engineer and experts can become a factor in the
development of an expert system.
Figure 10.14 represents the environment in which an expert system
evolves. Of course, a digital computer of sufficient capacity is required for the

Figure 10.13
Stages of
Knowledge
Acquisition

FPO

UNDERSTANDING AUTOMOTIVE ELECTRONICS 355