Insect Expert System

The expert system is a intelligent computer program, which utilizes knowledge, experience and reasoning to solve the problems that only experts can solve. The research and application of expert system has become the hotspot and focus of the artificial intelligence research all over the world.Basing on the composition of the yunnan forest insects and the speciality of insect search, a principle of data analysis and code that fits for insect classification character is brought forward, ulteriorly, a new meshy data structure is set up. The database embodys 14 orders, 195 families of insects hi yunnan forests and 5333 species of insects' Chinese name, latin name, character, geographical distribution and host SQL Server2000 is used as develop tool to set up the background database of YunNan Forest Insect Expert System and to optimize the code of data.The concerned concept and analytical ideology of expert system are applied on yunnan forest insect expert system and a new design technology which based on Object-Oriented and user function is imported. The yunnan forest insect expert system is designed with PowerBuilder 8.0.Interface is the medium for user to communicate with system, so the degree of its friendship decides directly whether users are glad to use it For this reason, the system's interface is designed like the style of the windows resource manager, in this way, the difficulties caused by the user's unfamiliaring with the system are reduced and the interface becomes concise, beautiful, human and easy-master.The system also provides a lot of functions for users. They can search the insect information embodied by the system in multiplicate ways. At the aspect of data output, the user can print the data he browses or looked up.The system aims at practical application. The test to the system showed mat it runs stably and efficiently. The result of the running proved that the expert system based on database and object oriented technology is fast, efficient and is worthy of popularizing.