在面向对象分析和设计中,用类图给出系统的静态设计视图,其应用场合不包括( )。下图是一个UML类图,其中类University和类School之间是(请作答此空)关系,类Person和类PersonRecord之间是( )关系,表示Person与Person Record( )。
- A.依赖
- B.关联
- C.聚集
- D.泛化
正确答案及解析
正确答案
解析
本题考查面向对象技术的基础知识。 考生应该了解UML的典型模型,包括用例图、类图、序列图、活动图等。本题考查类图,类图主要是对系统的词汇建模,或者对简单的协作建模,或者对逻辑数据库模式建模,而用例图对系统的需求建模。 类图中,类和类之间的关系有依赖关系、关联关系、聚集关系、组合关系和泛化关系,其中聚集关系和组合关系是表示更强的关联关系,表示整体和部分的关系,而组合关系的类之间具有相同的生命周期。图中类University和类School之间是聚集关系,类Person和类PersonRecord之间是依赖关系,表示Person与PersonRecord之间的语义关系,其中PersonRecord发生变化会影响Person的语义。
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