它使用接口和业务对象与其他组件通信。
It communicates with other components using interfaces and business objects.
不公开直接由外部使用的接口的组件被用于帮助进行标准化的组件间通信。
Components that do not expose interfaces to be directly consumed externally are used to facilitate a standardized inter-component communication.
从更加技术性的角度看，SCA(通过公共接口定义)定义了围绕业务组件的框架，并使组件能够越过企业边界彼此通信。
From a more technical point of view, SCA defines the frame around business components (via a common interface definition) and enables them to communicate with each other over corporate boundaries.
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