数据访问逻辑层 meaning in Chinese

data access logic

The mps system requirements analysis and the design of database are completed with uml modeling technology , which inosculates the system ' s requirement analysis process and the component - based software development process and pave way for the abstract , development and assembly of components . then the thesis divides the business layer in the typical three - tier architecture into another three sublayers that are the data express layer , data access logic layer and business rule layer , and a framework that is more explicit and easier to develop and reuse is constructed . in this framework , the design strategy and method of components in diverse layers are given to complete their corresponding functions
本文首先利用uml面向对象建模方法完成了mps系统的需求分析和数据库的设计，使需求分析过程与开发过程更紧密地结合起来，为组件的抽取、开发与组装奠定了基础；然后将典型三层系统结构中的业务逻辑层分为业务实体层、数据访问逻辑层和业务规则层，提出了一个更加清晰、易于开发和复用的总体框架结构，并设计了框架中不同组件的开发策略；最后利用com mts com +组件技术完成了基于本框架的mps系统中各层组件的开发、分布式事务处理及部署通信，调试了系统的运行，实现了系统的功能。