规则是更小的表示这种数据与用户间的关系或业务需求的单元。
Rules are smaller units representing such relationships or business requirements between the data and the user.
充实和自定义中介可能需要访问其他场所的数据(或其本地副本)，例如服务提供者的业务单元。
Enrichments and custom mediations may require access to (or local copies of) data from other locales, such as the service provider's business unit.
LDM应避免被物理数据库、应用程序或业务单元束缚，从而实现跨整个企业的语义中心。
LDM should avoid being bound by a physical database, an application, or a business unit in order to be a true semantic hub across the enterprise.
最理想的状态是在类似的业务单元中基于收集的客户满意度数据设置盈利目标。
Optimally, profit goals are set at the same business unit level at which customer satisfaction data are collected.
如果业务层和数据层之间有依赖关系，你该怎么写单元测试？
How can you implement unit testing when there are dependencies between a business layer and a data layer?
ZXA10 T600综合接入局端业务汇聚单元采用分层式的模块化设计，按照不同的业务类型划分成不同的功能单元，如POTS业务单元、数字数据网DDN业务单元。
The ZXA10 T600 adopts a hierarchical modular structure. It is divided into different functional units according to the service types, such as POTS service unit and DDN service unit.
模型层：主要负责业务的处理逻辑实现与数据库的交互等，是该系统的主要计算单元。
Model layer: responsible for handling business logic interacts with the database, are the system 's main computing unit.
模型层：主要负责业务的处理逻辑实现与数据库的交互等，是该系统的主要计算单元。
Model layer: responsible for handling business logic interacts with the database, are the system 's main computing unit.
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