题目详情

下列针对某文档处理软件的说明中,不适宜作为需求描述的是 ( ) 。

  • A.采用基于字符串匹配的快速分词方法
  • B.找出文档的拼写错误并提供替换项列表来替换拼错的词
  • C.找到错词并予以高亮度提示,显示提供替换词的对话框
  • D.用户应能有效地纠正文档中的拼写错误

正确答案及解析

正确答案
A
解析

本题考查软件需求的特点。软件需求说明(Software Requirement Specification,SRS)SRS 应该具有以下特性:无歧义性、完整性、可验证性、一致性、可修改性、可追踪性(向后追踪、向前追踪)、运行和维护阶段的可使用性。《Software Requirements》举了一个字处理程序的例子来说明需求的这三种不同种类。业务需求可能是:"用户能有效地纠正文档中的拼写错误",该产品的包装盒封面上可能会标明这是个满足业务需求的拼写检查器。而对应的用户需求可能是"找出文档中的拼写错误并通过一个提供的替换项列表来供选择替换拼错的词"。同时,该拼写检查器还有许多功能需求,如找到并高亮度提示错词的操作;显示提供替换词的对话框以及实现整个文档范围的替换。

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