在SDO的帮助下，您无需熟悉一项特定技术的应用程序接口就可以访问和利用数据(请参见参考资源小节中的Service Data Objects介绍)。
With SDO, you do not need to be familiar with a technology-specific API in order to access and utilize data (see Introduction to Service data Objects in the Resources section).
本文首先介绍这种参考实现的功能，然后讨论它的模块结构，最后给出数据结构和接口设计。
This paper first introduces the function and structure of this reference implementation, then discuss the module structure. At last data structure and interface will be presented.
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