media-files/online-shopping-sequence-diagram-3.svg

<?xml version="1.0" encoding="utf-8" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd"><svg xmlns="http://www.w3.org/2000/svg" width="1008" height="696" xmlns:xlink="http://www.w3.org/1999/xlink"><source><![CDATA[Title: Checkout and Place an Order
Customer->ShoppingCart: getItems()
ShoppingCart-->Customer: Items
Customer->Customer: getBillingInfo()
Customer->Customer: getShippingInfo()
Customer->Order: createOrder(Items, billingInfo, address)
Order->Item: verifyItem()
Item-->Order: verification Status
Order-->Customer: Error (e.g Item not available)
Order->Payment: processPayment(billingInfo, amount)
Payment-->Order: paymentStatus
Order-->Customer: Error (e.g. Payment failed)
Order->Shipment: processShipment(address)
Shipment-->Order: Shipment Status
Order-->Customer: Order Status

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