单选题 System analysis is traditionally done top-down using structured analysis based on ______. Object-oriented analysis focuses on creation of models. The three types of the analysis model are ______. There are two substages of object-oriented analysis. ______ focuses on real-world things whose semantics the application captures. The object constructed in the requirement analysis shows the ______ of the real-world system and organizes it into workable pieces. ______ addresses the computer aspects of the application that are visible to users. The objects are those which can be expected to vary from time to time quite rapidly.

A、 function model, class model and state model
B、 class model, interaction model and state model
C、 class model, interaction model and sequence model
D、 function model, interaction model and state model

【正确答案】 C

【答案解析】传统的系统分析以功能分解为基础，利用结构化分析自顶向下完成。面向对象分析关注于模型的创建。该分析模型有三种类型：类模型、交互模型和状态模型。面向对象分析有两个子阶段。领域分析侧重于现实世界中那些语义被应用程序获取的事物。在需求分析中所构造的对象说明了现实世界系统的静态结构并将其组织为可用的片段。应用分析处理应用系统中用户可见的计算机问题。所分析的对象可能会被预计时不时地发生较快的变化。