IBM Rational Software Modeler: Rational Software Modeler is a tool based on Unified Modeling Language (UML) 2.0 that allows architects and analysts to create different views of the system.
IBM Rational Soft ware Modeler： Rational Soft ware Modeler是一个基于统一建模语言(uml) 2.0的工具，它允许架构设计师和分析师们创建系统的不同视图。
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The Rational Unified Process defines UCM as "Rational Software's approach to managing change in softwaresystem development, from requirements to release.
The Unified modeling language (UML) is a general-purpose visual modeling language that is used to specify, visualize, construct, and document the artifacts of a softwaresystem.