database diagrams

The following topics cover the basics of using the designer to work with database diagrams.

下面的主题介绍了使用设计器处理数据库关系图的基本知识。

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In step of logical design, database models and package diagrams are presented in definition of object class, user interface and object class diagrams.

在逻辑设计阶段，充分利用定义对象类、定义用户接口、定义对象类图等方法建立ERP系统数据库模型和包图；

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In database diagrams, a self-join is called a reflexive relationship.

在数据库关系图中，自联接被称为反身关系。

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The system describes the whole flow detailed from the perspective of software engineering composing of requirements analysis, overall design, detailed design and system implementation process, moreover the system functional module diagram, the database design and class diagrams.

系统从软件工程的角度详细阐述了系统的需求分析、总体设计、详细设计以及系统实现过程，分析设计出了系统的功能结构图，数据库设计图和类图等。

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Under construction mode of application support layer, the article follow the plug-in design concept design. the article highlight the database design class diagram, the detailed design of the system activity diagrams, ER diagrams, and a description.

基于应用支撑层的构建模式，插件式设计理念，重点介绍了数据库设计结构与类图，详细设计了系统活动图、ER图等，并进行了描述。

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Class, sequence, and database schema diagrams use visual tools similar to Rational Software Modeler.

类图、序列图和数据库方案图使用类似于Rational Software Modeler的可视化工具。

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Through applying these technique, the model of Track Meet Information Management System is established, and requirements analysis and system design processing are described, and the system structure, function module, database design and deployment diagrams are given.

运用以上技术建立起了田径运动会管理信息系统的模型，介绍了系统需求分析、设计的整个过程，给出了系统的系统体系结构、功能模块、数据库设计以及系统的部署。

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Through Thermo-Calc software and the related database, phase diagrams were calculated to analyze the interfacial reactions between Sn-Pb eutectic alloy and Ni matrix.

采用Thermo Calc软件及相关数据库，将相图计算应用到Sn Pb共晶焊料与N基体的界面反应行为的分析当中。

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The transformation diagrams of super-cooled austenite are described by polynomial-like function and cubic spline function. The database of diagrams is set up on computer, which provides abundant preparations for the following work.

用拟和法及三次样条函数描述了钢的过冷奥氏体冷却转变曲线，在微机上建立了曲线数据库，为后续工作做了充分的准备工作。

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Completing the database design of the bill management system: including selection of the database, design of database E-R diagram and other relevant database diagrams and so on.

完成了票据管理系统的数据库设计：包括数据库的选型，数据库E-R图、数据库相关表设计等等。

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