UML( unified Modeling Language )是一種定義良好,易于表達(dá),功能強(qiáng)大且普遍實(shí)用的建模語(yǔ)言。它溶入了軟件工程領(lǐng)域的新思想、新方法和新技術(shù)。它不僅可以支持面向?qū)ο蟮姆治雠c設(shè)計(jì),更重要的是能夠有力地支持從需求分析開始的軟件開發(fā)的全過程。需要說明的是,UML是一種建模語(yǔ)言,而不是一種方法。
UML指南An important part of the unified Modeling Language (UML) is the facilities for drawing use case
diagrams. Use cases are used during the analysis phase of a project to identify and partition system
functionality. They separate the system into actors and use cases.