• The Data Abstract Layer consists of a single class to provide location-related data to the business layer (see Figure 3).

    数据抽象包含,用于业务提供关于位置的信息(请参见图 3)。

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  • Data is retrieved from the location Data Provider — a Data Abstract Layer (DAL) componentwhich caches all locations in memory.

    位置数据提供者检索数据,这一个数据抽象(DAL)组件内存缓存所有位置

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  • The example in this article consists of the Data Abstract Layer (DAL), Data Transfer Objects (DTOs), the Business Logic Layer (BLL), the Presentation Layer, and supporting helper classes.

    本文中的示例包含数据抽象DAL)、数据传输对象DTO)、业务逻辑层(BLL)、表示用于支持helper

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  • Taking message hiding as a basic method, a technique that can improve the quality of MIS software is figured out by means of program abstracting and setting up abstract data layer.

    利用程序抽象技术信息隐藏基本手段通过建立抽象数据,探索一条提高MIS软件质量技术方法。

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  • This system provides a support of presentation layer to the data file abstract syntax notation and the data grammatical conversion in order to achieve one's object of the sharing of data files.

    系统提供表示数据文件抽象语法表示支持数据语法转换从而达到了数据文件共享目的

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  • It gives the classes and hierarchical structure of them and the implementation of the design of logic layer, according to data and operation of practical business and encapsulation and abstract.

    依据实际业务数据操作要求,数据操作进行封装和抽象,产生业务逻辑及其类层次结构实现对业务逻辑层设计

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  • This system provides a support of presentation layer to the data file abstract syntax notation and the data grammatical conversion in order to achieve one's object of the sharing ofd

    系统提供表示数据文件抽象语法表示支持数据语法转换从而达到了数据文件共享目的

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  • This system provides a support of presentation layer to the data file abstract syntax notation and the data grammatical conversion in order to achieve one's object of the sharing ofd

    系统提供表示数据文件抽象语法表示支持数据语法转换从而达到了数据文件共享目的

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