This paper based in theory of software reuses, taking account of the actuality on the expert system for substation working arrangement & switching sequence, researching the technology of OO and COM model, provide the opinion to take the advantages of the technology of OO and COM model in different aspects to improve the universality of expert system. In consequence mechanism research, I emphasize to from focusing on deduce to focusing on the data, and increase mutual interfaces to improve the maintainability of the expert system. ZhangYing(Power System and Its Automation)Directed by prof. Zhu Yongli...
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