确定商业案例工具中常见的一组建模概念，用于描述软件产品的操作行为。建立一个统一的、集成的模型和一个文本语法c，用于表达这些概念的公共属性（属性和关系），因为它们已被用于建模软件行为。这是对原标准第3部分的小修订。它在定义的范围内仍然有用。

Identify a common set of modeling concepts found in commercial CASE tools for describing the operational behavior of software product. Establish a uniform, integrated model and a textual syntax c for expressing the common properties (attributes and relationships) of those concepts as they have been used to model software behavior. This is a minor revision of Part 3 of the original standard. It is still useful within its defined scope.