它还包含用于在信息系统中实现业务设计的工具、编程模型和技术。
It also encompasses the tools, programming model and techniques for implementing the business design in information systems.
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。
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.
信息模型——应用程序在子系统的基础上定义其信息模型。
Information model — An application defines its own information model on top of its subsystems.
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