Library is the system of improving the value of document information.

Study on Role of Document Information Technology in the Process of Changing of Document System in China;

With the use of fourth edition of the Chinese library Classification, University libraries should, according to the practical situation and considering comprehensive factores, choose an edition that is fit for their own features so as to accomodate the need of the classification of document information.

This passage discusses how to develop information resources, and strengthen construction of foxbase, build guranty system, At the same time, it concerns the measure, method, importance of document information resources.

In order to promote the informationalization work of Yangtze River Scientific Research Institute(YRSRI),the present situations of archives,books and periodicals,electronic readings,sharing information and data retrieval through Internet are presented from the view-point of literature information resources,and the strategies and contents of infrastructure construction are discussed.

From the practical angle, this paper expounds the aims and essential conditions of constructing personal digital library and the types of personal digital library, and probes in detail into how to collect literature information.

, this paper discusses the important position and the pushing function of the literature information in constructing the innovative country.

Discussion on the Intellectual Property Protection and Information Digitalization;

Based on the analysis of three levels of information and intelligence services in auto company such as information resources supplying, retrieving & consulting service and strategy intelligence, the importance of information services and research for auto industry in knowledge economy times is described.

Developing Documentary Information Resources to Meet Knowledge Economy s Challenge;

Questions concerning the personal service of documentary information under the environment of network;

The present documentary information resourcesharing situation and mean to help achieve its common sharing;

Documental information control and information legislating construction;

The article researches the documental information service of university library under the current situation at the beginning of the new century,and presents the points of view about contents of documental information service,the set concepts and the adopted measures.

This paper discusses about the characteristics, functions and the importance of documental information in the knowing and doing of human beings, the means of elaboration of documental information in peoples knowledge versu s practice, and the meaning, the process and the significance of exchanging such information.