This paper focuses on data description norm and techniques to build library in network.

The weakness of Foxpro data description interface is discussed in this paper.

In this paper, a one-cluster clustering based data description method (OCCDD) is proposed for one-class classification.

To overcome the difficulties in the appropriate partition and expression of spatial objects in the existing spatial description of city construction,the describable hierarchy and geometric definition of city construction were analyzed with the help of the basic theory of ontology—part-whole relation.

By investigating the present situation of domestic subject information gateways,this paper analyses their characteristics based on their establishers,subject areas,resource organization,metadata description,software platform,added services and interoperability.

Then,according to China standard of E-Government metadata,it gives a method of E-Government metadata description based on XML schema to manage the government information resourses,and it provides a actual example of designing the E-government resource document by using XML schema and an expectation of application prospect of the method.

In this paper,the author compares and analyzes the differences of descriptive metadata within these two databases context and concludes that Descriptive Metadata Standard for Thesis is a standard that must be observed in order to build a standard digital library.

After examining the problems of current digital resource in resource integration system,the article defines what is descriptive metadata standard and proposes the methods for implementing descriptive metadata standard.