【摘要】 基于OGSA-DAI给出了一个用于解决网格环境下异构数据源数据集成和分布式查询处理的数据集成模型,在此基础上利用客户端元数据库解决了用户对目标数据库信息了解匮乏的问题,从而为用户的分布式查询处理提供了一种直观透明的、可视化的虚拟数据库视图环境。更多还原

【Abstract】 This paper put forward a model based on OGSA-DAI to resolve data integration and access of heterogeneous data sources under the grid environment. Besides, this model resolves the problem that the users lack knowing the information of database by using clients’metadata database. Thereby the model provides a direct, transparent, and visual virtual database environment for users to perform distributed query.更多还原