关键是组件为应用程序的所有实例维护单一的数据模型。
The key is that the component maintains a single data model for all instances in an application.
SOA中的关键组件是服务接口，因为它把底层数据提供给服务消费者。
The critical component in SOA is the service interface because it delivers the underlying data to the service consumers.
分析组件，包括数据仓库(DW)和业务绩效报告应用程序的关键部分。
The analytics components, including the key parts of a Data Warehouse (DW) system and a business performance reporting application.
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