Firstly, we study the seamless integration of distributed and heterogeneous storage resources in wide area network, and propose the autonomous federated data service model, in which model roles are described in detail on behavior, feature, organization, management and interaction. 首先,本文研究了对广域分布异构的存储资源的无缝集成问题,提出了一种基于自治模式的联邦数据服务模型,并阐述了模型中各角色的行为、特征、组织、管理和交互。