应用层接口负责处理数据在特定应用程序中表示方式上的差异。
The application level of the interface handles differences in the way data are represented in particular application.
具体对协议适配层的数据结构、实现呼叫的接口原语、处理流程，系统的呼叫处理流程进行了讨论。
The paper discusses the data structure and interface primitive and processing of protocol adaptation layer. It also discusses call processing of system.
最后基于分层设计思想，将平台划分为全局配置层、数据接口层、业务逻辑处理层和页面层四个层次，完成了系统开发平台的结构设计。
Finally, the platform is divided into common configuration layer, data access layer, logic operation layer, and display layer with the layered design.
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