Finally the writer research the application of distributed database in the system, resolve the concentrateapplication problem of telecom data, and business data.
This pattern allows designers to concentrate on the display portion of an application and developers to concentrate on developing the components required to drive the application's functions.
这种模式是让设计者集中于设计应用程序的显示部分，而开发者则集中于开发驱动应用程序功能所需的组件。
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This benefits the developer because you can concentrate on designing the application rather than the integration code that sits around it.