以下关于基于模型的软件设计的叙述中，错误的是______。
- A.可以提高软件开发效率，提高软件质量，开展早期验证
- B.其目标都是用建模语言来描述系统的架构与构件
- C.常常需要使用在不同级别上不同系统观点的多个模型来表达
- D.通常是一个以自顶向下的方式进行模型构造、分析和变换的迭代过程
正确答案及解析
正确答案
解析
本题考查基于模型软件设计方面的基础知识。基于模型的软件设计，可以提高软件开发效率，提高软件质量，开展早期验证。任何基于模型的设计方法，其目标都是用建模语言描述系统架构与构件，为了准确描述系统，基于模型的设计，常常需要使用不同级别、不同系统观点的多个模型来表达，基于模型设计，模型构造、分析和变换通常是以不确定方向(自顶向下、自底向上等)的方式进行迭代。
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