结构化设计( Structured Design, SD ）是一种面向( )的方法,该方法中(请作答此空)是实现功能的基本单位。
- A.模块
- B.对象
- C.接口
- D.子系统
正确答案及解析
正确答案
解析
此题考查结构化设计基本概念，题目内容源于教程。结构化设计（Structured Design, SD）是一种面向数据流的方法，它以SRS和SA阶段所产生的数据流图和数据字典等文档为基础，是一个自顶向下、逐步求精和模块化的过程。SD方法的基本思想是将软件设计成由相对独立且具有单一功能的模块组成的结构，分为概要设计和详细设计两个阶段，其中概要设计的主要任务是确定软件系统的结构，对系统进行模块划分，确定每个模块的功能、接口和模块之间的调用关系；详细设计的主要任务是为每个模块设计实现的细节。
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