基于XML的分布式异构数据转换技术研究

Research of distributed isomerism data change technology based on XML

XML作为一种可扩展标记语言,其潜在优点使其成为分布式系统中数据转换的一种标准,它在网络系统中异构数据之间的转换过程是采用先把源数据库转换成XML文档集合,再把XML文档集合转换成目的数据库,转换时数据库的一致性和完整性是2个需要考虑的重要问题,XML Web Service公开服务法可有效解决数据的一致性问题,中间XML文档记录表间约束法保证了数据的完整性.

XML is an extensible markup language ,it becomes a data-exchange standard of distributed systems because of its potential advantages, it changes source database into XML document collections first during conversion process in network system of heterogeneous, and then converts XML document to purpose database, the compatibility and completeness of database are two important issue need to consider during conversion, public services of XML Web Service can be an effective solution to the problem of data consistency, and middle XML documents about table of restraint methods guarantees the integrity of the data.