Pays-for Sale superclass justified by common attributes and associations Payment additional associations amount: Money each payment subclass is Cas h Credit Check handled differently Payment Payment Payment Identifies-credit-with Paid-with Creditcard Check
Authorizes-payments-of x Store 大 superclass justified by oAuthorizationService common attributes and associations address name dditional associations phoneNumber Credit Check Authorization Authorization Service Service Authorizes Authorizes Credit Check Payment Payment
泛化 ●抽象概念类 ●考虑关联类 ●考虑聚合 ●考虑时间 ●导出元素 ●限定符 ● Ordered elements ●包的表示及如何分区
泛化 抽象概念类 考虑关联类 考虑聚合 考虑时间 导出元素 限定符 Ordered Elements 包的表示及如何分区
Abstract conceptual Classes Payment If a Pay ment instance may exist which isnot a C ashPayment Credit Payment heck Payment CashPayment, CreditPay ment or Check Payment, then Payment is not an abstract conceptual class abstract conceptual class Paymen Payment is anab stract conceptual class A Pay ment instance must conform to one CashPayment Credit Payment CheckPayment of the subclasses CashPayment, Credit Payment Check Payment
Abstract conceptual classes
泛化 抽象概念类 考虑关联类 ●考虑聚合 ●考虑时间 ●导出元素 ●限定符 ● Ordered elements ●包的表示及如何分区
泛化 抽象概念类 考虑关联类 考虑聚合 考虑时间 导出元素 限定符 Ordered Elements 包的表示及如何分区