If models are created with Rational Software Modeler, a version-control system (such as Rational ClearCase) can be used to manage the model files.

如果使用Rational Soft ware Modeler创建模型，则可以使用版本控制系统(如rational ClearCase)来管理模型文件。

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Rational Data Architect will go through the catalog tables, also known as system tables in some database systems, and create a data model based on that information.

Rational Data Architect 将检查编目表（在某些数据库系统中也称系统表），并根据该信息创建数据模型。

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IBM Rational systems Developer is a design and development tool that takes advantage of the full power of Eclipse and includes plug-ins that enable system architects to model complex systems.

IBM Rational Systems Developer是一个设计和开发工具，它能够充分利用Eclipse的能力，而且还包含一些插件，使得系统架构师可以对复杂系统进行建模。

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It is tempting to want the Internet rebuilt to look more like a highly rational, centrally planned version of an airline system's hub-and-spoke model: big users near big content, as many direct routes as possible.

FORBES: Weaving The Perfect Net