复旦大学：《面向对象分析和设计》课程资料_UML&GRASP_5.3 Iteration 3 SSD和合约 ADDING NEW SSDs AND CONTRACTS

ADDING NEWSSDS AND CONTRACTS 徐迎晓 xuyingxiao@126.com 复旦大学软件学院

ADDING NEW SSDs AND CONTRACTS 徐迎晓 xuyingxiao@126.com 复旦大学软件学院

Agenda new payment handling requirements O New System Operations

Agenda new payment handling requirements New System Operations

Agenda e new payment handling requirements ?New System Operations

Agenda new payment handling requirements New System Operations

e new payment handling requirements involve new collaborations with external systems

new payment handling requirements involve new collaborations with external systems

Process Sale Scenario NextGen POS TaxCalculator makeNew( enterItem(itemID, quantit des cription. total more Items andsales taxLineltems= tT axes( sale total with taxes二二 Figure 28.1 SSD common beginning

NextGen POs actory ACcounTs ake credit Pay mer (credNum, expiry Date uestApproval( request postReceivable( receivable st sale( sale Figure 28.2 Credit payment SsD

NextGen POS Factory System asnat Service make C heck Payment (drivers LicenseNumber reply: requestApproval(request) Figure 28.3 Check payment SsD

Agenda e new payment handling requirements CNew System Operations

Agenda new payment handling requirements New System Operations

New System Operations make CreditPayment make CheckPayment

New System Operations • makeCreditPayment • makeCheckPayment

New System Operation Contracts P.344~435

New System Operation Contracts P.344~435