....0 中采用的便是四层结构即 Web 层(Presentation Tier)业务外观层(Business Facade Tier)业务规则层(Business Rules Tier)和数据访问层(DataAccess Tier)这四层。
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The business logic tier enforces the rules of the business, such as calculations and workflow, that drive the application.
业务逻辑层实施业务规则(比如计算和工作流),从而驱动应用程序。
The system adopts a 4-tier architecture, including representation layer, business facade layer, business rules layer, and data access layer.
系统采用了表示层、业务外观层、业务规则层、数据层的四层体系结构。
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