5) Knowledge Acquisition
Knowledge Acquisition of expert system is also called
preprocessor. In expert system it changes factual
knowledge in the professional field and the peculiar
empirical knowledge of field expert into computer
available forms and delivery to function modules of
knowledge base. Sometimes this part is also called system
of learning function which provides convenience for
2012 24th Chinese Control and Decision Conference (CCDC) 3743
improvement. Its main job is to maintain the system, such
as consistency check, expansion, and modification of
knowledge base and so on. In the interaction of experts and
system process