The power of this layer is in separating data access code from the business logic for disparate data store technologies.
该层的作用在于针对不同的数据存储技术，从业务逻辑中分离数据访问代码。
Business rules are centralized into the business logic layer that serves as an intermediary for data exchange between the presentation layer and the data access layer.
业务规则可以集中到业务逻辑层，该层充当表示层和数据访问层之间的数据交换的中间层。
Many users have their own data access layer, with their own APIs, to which the business logic is coded.
许多用户都用自己的数据访问层，使用自己的API编写业务逻辑。
The Business Logic Layer, in turn, requests that the data Access Layer deal with data persistence.
而业务逻辑层则请求数据访问层处理数据持久性。
We had properly isolated the data access layer, simplifying the optimization of queries (which had sometimes snuck into the business logic on previous projects).
我们适当的将数据访问进行了分层，简化了查询的优化（在之前的项目中数据访问有时会混合在业务逻辑中）。
These underlying data access calls are thus consolidated in the data access layer and hidden from the business logic.
这些底层数据调用整合到数据访问层中，对于业务逻辑是不可见的。
The data Access Layer utilizes WPF data binding to tie UI components to business logic or data components.
数据接口层(Data Access Layer)利用WPF实现UI组件对业务逻辑和数据组件的绑定。
So far, we have finished examining the server-side data access layer logic for custom authentication and reset password. We will switch to the client side next.
至此，已经完成客户端对自定义授权与重置密码的数据访问层逻辑。现在看看客户端。
Spring framework is used to tie together the components in the Data Access Layer, the Business Logic Layer, and the Presentation Layer.
Spring框架用于将数据访问层、业务逻辑层和表示层中的各组件结合在一起。
DECP is made up of data access layer, business logic layer, security proxy, data transport proxy, client proxy, messages layer and transactions manager.
DECP由数据访问层、业务逻辑层、安全代理、数据传送代理、客户代理、消息层、事务管理器七个部分组成。
Additionally, the presentation layer might communicate with the data access logic in the middle tier through a service such as a service.
此外，展示层可以透过服务(例如，服务)与中介层内的资料存取逻辑进行通讯。
Finally, the platform is divided into common configuration layer, data access layer, logic operation layer, and display layer with the layered design.
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。
The major functions of the subsystem are determined and the software frame, service logic layer and data access layer of the subsystem are designed.
确定了该子系统的主要功能，并设计了子系统的软件架构、业务逻辑层以及数据存取层。
A visualization information database is designed to solve the heterogeneity problem, providing a unified access to the data layer for the logic layer.
针对海洋数据库数据异构问题，研究设计了可视化信息数据库，为数据可视化业务层提供统一的数据层接口。
A visualization information database is designed to solve the heterogeneity problem, providing a unified access to the data layer for the logic layer.
针对海洋数据库数据异构问题，研究设计了可视化信息数据库，为数据可视化业务层提供统一的数据层接口。
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