A series of formal definitions, such as the Data Searching Node (DSN), the Data Searching Server, the Data Searching Area, the Data searching Server Area and the Data Searching Grid (DSG), were given.

• 给出了数据搜索节点、数据搜索服务器、数据搜索区域、数据服务器区域和数据搜索网格(DataSearchingGrid-DSG)等一系列定义。