Abstract: A grid-based integration model of distributed heterogeneous data is present based on the analysis of the shortcomings of the existent heterogeneous data integration system. Using grid data services developed by Globus Toolkits 4, it can highly effective access to separate data sources via the grid and uses the reliable file transfer service to transfer large-scale data on demand. Finally, an example of the model-based is achieved.

Key words: Heterogeneous data, Grid data services, Data integration, XML, Globus Toolkit 4

摘要： 在分析了现有异构数据集成系统不足的基础上，通过引入网格服务技术，提出了一个基于网格的分布式异构数据集成模型。由于引入了基于网格计算中间件GT4的网格数据服务，因此该模型能高效地访问分布式异构数据源，而且在需要时可以利用可靠的文件传输服务来传输大量数据，并把XML作为数据交换和集成的介质。最后给出了模型的具体实例。

关键词: 异构数据, 网格数据服务, 数据集成, XML, Globus Toolkit 4