职责、 GRASP和UM图之间的关系 ■交互图与分配职责密切 相关:绘制交互图的过 程就是职责分配的过程。 Sale makePayment(cash Tendered) createlcashTendered abstract, implies Sale objects have a responsibility to create Payments职责、GRASP和UML图之间的关系 ◼ 交互图与分配职责密切 相关：绘制交互图的过 程就是职责分配的过程。 : Sale makePayment(cashTendered) : Payment create(cashTendered) abstract, implies Sale objects have a responsibility to create Payments