logic database design

Then the overall system architecture design, system logic design, system physical design, database design and environment design.

然后进行了系统总体架构设计、系统逻辑设计、系统物理设计、数据库设计和运行环境设计。

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On the base of investigating the requirement of database subsystem, the paper researched how to design the concept model> logic model and physics model of CAT System Engineer Database.

在详细进行数据库子系统需求关系调研的基础上，用系统工程的理论研究了CAT系统工程数据库的概念模型、逻辑模型和物理模型的设计。

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The logic of intermediate database design and from SQL SERVER login security and database permission settings for its safety do two aspects of setting.

对中间数据库进行了逻辑设计并从Sql Server登录安全和数据库权限设置两个角度对其安全性做了设置。

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Then it designs architecture of whole system, describes contents of system, system modeling, logic sketch map and database design, related technology for system achievement, it does system selection for some of system hardware and software.

然后设计了整个系统的体系结构，描述了系统的组成、系统建模，逻辑示意图以及数据库设计，系统实现的相关技术，对系统部分软硬件进行了系统选型。

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In accordance with the requirements of modern software engineering, the paper for the system takes requirements analysis, preliminary design, logic design, database design and so on. 5.

按照现代软件工程的要求，对系统进行功能需求分析、概要设计、逻辑设计、数据库设计等等。

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Using the DAO design pattern abstract and encapsulate all access to the data source, the separation of business logic and database access logic.

使用DAO设计模式抽象和封装了所有对数据源的访问，分离了业务逻辑和数据库访问逻辑。

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