隨著 Internet 中數據信息量迅速增加，專業領域內的數據共享逐漸成為一個重要研究
領域，該文首先對地震網絡數據分布的特殊性進行了概括，分析國外典型數據共享項目
OGSA-DAI 的特點，針對其存在以Web Service 作為接口而不便于應用開發等不足，提出建立面向應用的地震網絡數據共享平臺的需求和目標，文中闡述了共享平臺的架構設計和主要模塊的功能，對該平臺實現的關鍵技術虛擬目錄的建立和虛擬中心數據庫做了詳細介紹。
關鍵字 異構；分布；數據共享；數據虛擬目錄
Abstract With fast increasing of data on Internet, data sharing in specific filed is becoming a
hotspot. In this paper, we summarize characteristics existed in seismologic network. Then analyze typical data sharing project OGSA-DAI and found its inconveniences to application development. Put forward aims of application oriented data sharing platform in seismologic network. After that, the architecture of the platform and functions of main modules is described. Also details the key technologies of the platform, such as ways to create virtual category and virtual center database.
Key words Heterogeneous, Distributed, Data sharing, Virtual category