软件需求包括三个不同的层次,分别为业务需求、用户需求和功能及非功能需求,( )属于用户需求。
- A.反映了组织机构或客户对系统、产品高层次的目标要求,其在项目视图与范围文档中予以说明
- B.描述用户使用产品必须要完成的任务,其在使用实例文档或方案脚本说明中 予以说明
- C.定义了开发人员必须实现的软件功能,使得用户能完成他们的任务,从而满足业务需求
- D.软件产品为了满足用户的使用,对用户开发、处理速度、安全性能等方面的需求
正确答案及解析
正确答案
解析
业务需求(Business requirement)表不组织或客户高层次的目标□业务需求通常来自项目投资人、购买产品的客户、实际用户的管理者、市场营销部门或产品策划部门。用户需求(user requirement)描述的是用户的目标,或用户要求系统必须能完成的任务。用例、场景描述和事件一一响应表都是达用户需求的有效途径。也就是说用户需求描述了用户能使用系统来做些什么。功能需求(functional requirement)规定开发人员必须在产品中实现的软件功能,用户利用这些功能来完成任务,满足业务需求。功能需求有时也被称作行为需求(behaviour requirement)。功能需求描述是开发人员需要实现什么。
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