Creating database models using reverse engineering.
使用反向工程创建数据模型。
This makes importing foreign keys easier in relational database models.
这样使得在关系数据库模型中导入外键更方便。
This is typical of frameworks that map object models to relational database models.
这是将对象模型映射到关系数据库模型的一种典型框架。
You may find Node-Arc-Node relationships (triple) easier to understand than relational database models.
您会发现Node - Arc - Node关系(三元组)比关系数据库模型更易于理解。
Design and construction: Completion of, and changes to, business, design, and database models; code development.
设计与构建：业务、设计和数据库模型的完成和变更情况；代码开发情况。
The problem, from his point of view, was a lack of mathematical rigor in defining the data model (some database models had no rigor whatsoever).
在他看来，该问题是因为在定义数据模型时缺乏数学严谨性(一些数据库模型没有任何严谨性)。
This abstraction and visualization theme continues with database models, XML schemas and Web Services Description Language (WSDL) documents (see Figure 3).
此抽象及可视化主题可以在数据库模型、XMLschemas和Web服务描述语言(Web Services Description Language,WSDL)文档上应用(参见图3)。
These are business concepts and they have been used in the database models, in the software programs, and in the documents that are read by managers and business partners.
这些都是业务概念，数据库模型、软件程序以及供经理和业务伙伴们阅读的文档中都用到了它们。
This paper analyzes and summarizes many classical multilevel security database models, comparing their advantages and disadvantages in detail as well as the availability under different semantics.
本文对众多经典的多级安全数据库模型进行分析总结，详细比较了其优缺点和不同语义下模型的可用性。
This paper analyzes and summarizes many classical multilevel security database models, comparing their advantages and disadvantages in detail as well as the availability under different semantics.
本文对众多经典的多级安全数据库模型进行分析总结，详细比较了其优缺点和不同语义下模型的可用性。
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