1个零或多个Person
类型的对象应与每个
Company
类型为Company
的零个或多个对象应与
Person
类型为Woman
的3个零或一个对象应与每个
Man
类型为Man
的4个零或一个对象应与每个对象相关联
类型Woman
5个Person
类型的对象应该与
输入Car
类型为Car
的6个零或多个对象应与每个
Person
类型为line
的7个零或一个对象应与每个对象相关联
类型Point
8个类型为Point
的对象应该与
输入Line
答案 0 :(得分:4)
你的读数都是正确的。几点意见/建议:
您可以更简洁地编写文本短语,如下所示:
Each Person is associated with zero or more Company(ies)
....
Each Car is associated with exactly one Person
....
(注意使用复数'公司' - 读得更好)
如果您添加动词短语来描述关系的含义而不仅仅使用'与...相关联',这确实很有帮助。
Each Person is employed by zero or more Companies
Each Company employs zero or more People
....
Each Car is owned by exactly one Person
Each Person owns zero or more Cars
....
HTH