The design of expert system and its realization based on C

This paper introduces some basic concepts about expert system and the characteristics of C# as well as its suitability in building expert system.It also introduces the object-oriented programming techniques and the basic designing ideas and structures of expert system.With an emphasis in C# under.NET environment the paper discusses that how to use production rule expression to transform the experience and knowledge involved in expert system into the forms that computers can recognize,and then create knowledge base and design the reasoning engine based on the accurate reasoning mechanism.Furthermore,it elaborates the development steps of expert system from the angle of software engineering.