The Unified Retrieval System Of Science And Technology Literature Based On .net Framework

With rapid development of Internet, there are variety of endless network Literature Databases, which has brought users great convenience. At the same time, the user who want to find the relevant information must be kept across from a database to another database, This is involved to journals, patents, standards, conferences, dissertations, bibliography, and so on numerous databases. Because every database has different dealing object, operating method and special client indexing system, to the ordinary users of being relative short of philological knowledge, the caused inconvenience is obvious. Therefore, more and more useres want a unified Indexing system with one-staion style to get faster and more convenient, with more information to meet their imminent requests, There is way of improving the quality and scope of such services, and also making a sign of digital technological documentation center.First, this article has worked over the unified indexing system including metadata, standardized search protocol, HTTP protocol, and comparative analysis between metadata and middleware integration model, finally at.NET environment, by using of WEB indexing proxy technique and XML web page analysis technique, we developed the Science and Tech. Literature.The system has fully integrated data resources of provincial scientific institutions, commonly used bibliographic database of institutions and Internet heterogeneous information, Such as Wang fang, VIP, Superstar, BooX, Founder, CNKI and so on, in WEB style to provide users a unified identity authentication and login-in access to the full text information of Indexing service system, which enables users to carry out multiple concurrent heterogeneous database researching at the same time, and displays a number of database search results to unified format. For those who need to access multiple databases, the system provides great convenience, also avoid trivia of signing in the databases respectively, which gives you an one-station network information service with easy use, quick solution and convenience.Practice has shown that the developed unified Indexing system could be able to shield the position of isomeric data resources and interface port, which improved the recall rate and precision, simultaneously supplied with good stability, adaptability under network environment and easy-maintenance features.