Business Analysis & Data Design ITEC-630 Spring 2008

1. Business Analysis &Data DesignITEC-630 Spring 2008 Use Case Exercise Solution Professor J. Alberto Espinosa

2. Practice Example We need to develop an order-processing system for a mail-order company that sells musical instruments of all sorts. Currently, the company has a paper catalog from which customers phone in or fax their orders and orders are only taken by hand. The proposed system should automate this process. It needs to allow customers to place orders by mail, phone, fax or directly through the web. Customers can pay with a money order or credit card. Customers can buy multiple items in various quantities with a single order. The system needs allow sales clerks to monitor the status of order fulfillment and notify customers when delays are anticipated. The system also needs to handle returns and cancellations. The system needs to interface with three existing external systems: (1) a Warehouse System – to send re-stocking orders to the central warehouse when necessary and to inquire about stock availability; (2) an Accounting System – to record customer receivables and pre-payments and inquire about customer payments; and (3) a Payment Processing system to process all charge card transactions. .

3. Context Diagram Example Place or cancelorders, return merchandise & inquire catalog Submit clientcheck and credit card payments PaymentProcessingSystem Customer Receiveapprovals Send notificationof delays OrderProcessingSystem Re-stocking orders &inquire inventory availability Uploadcustomerreceivables &pre-payments & inquire aboutcustomer payments Place orcancel orderon behalf of client & re-ordermerchandise Sales Clerk WarehouseSystem AccountingSystem

4. Actor Specification Cards

10. Use Case Model

11. Initial Use Cases

21. Base Use Cases

26. Etc.Other use cases?