The normalization,consistency and validity of XML document can be ensured when using restrictions.This paper discusses two kinds of restriction,one is an essential restriction based on XSD or DTD,the other is a self-defined restriction,XML function dependency,and also describes these two kinds of restriction and their validating methods.At the same time,this paper gives some examples about XML restriction and XML document in library operation.
张健. XML文档的约束及其应用探讨[J]. 现代图书情报技术, 2005, 21(5): 23-26.
Zhang Jian. Discuss on XML Constrains and Their Applications. New Technology of Library and Information Service, 2005, 21(5): 23-26.