UML Class Diagram: Web Transactions <> <> Search Engine Page attributes operations() <> <> <> <> Item productName: String productID: double productNumber: float qty: int cost: int //in dollars totalCost: int //in dollars costConvert(type, rate): int computeTotal(....) ShoppingCart currency: type amount: int numOfItems: int shipping: int //set shipping tax: int subTotal: int total: int updateCart(): void updateTotal():int refreshScreen(): void currencyConvert(type, rate): int SearchResults E-commerce MainPage