My assignment is to use 3 design patterns. They can be of any kind (example: Observer, Template, Strategy, Factory ETC.) To modify this class diagram I have created for this scenario

Consider the following high-level description for GameSpeed retailer:

? The store has a StoreManager, Customers, and Salesmen ?

The retailer sells new and pre-owned different game consoles, games, and tablets

? The StoreManager can Add/Delete/Update products

? Salesman can create Customer accounts

A customer can subscribe/unsubscribe to receive email notifications for new product releases

A customer can subscribe/ unsubscribe to receive email notifications for Special Sale Events

? There are 3 Console Manufacturers and each offers its own models:

1. Microsoft

1. XBOX One

2. XBOX 360

2. Sony

1. PS3

2. PS4

3. Nintendo

1. Wii

2. WiiU

? There are 3 Game Makers

1. Electronic Arts

2. Activision

3. Take-Two Interactive

? Every console might have accessories that could be bought separately

? Retailer offers warranty that can be purchased by the customer for every console

? The customer can pre-order products ? The customer can trade-in products ? The customer can place an order online, check the status of the order, or cancel the order.

? The customer can pay in cash, check, or credit card ? The customer has the choice to enroll (or cancel) and become PowerMember in order to receive 5% discount for every item purchased for an annual fee of $100

? Some of the products may have store special-discounts

? Some of the products may have manufacturer rebates

? The customer can choose one of the following options when buying a new console

1. Buy the new console with no replacement

2. Buy the new console with 1 year replacement for 50% fee of the console retail price; under this plan the customer can replace the console by a new one any time during the year (The console can be replaced only once for the customer).

3. Buy the new console with lifetime replacement for 65% fee of the console retail price; under this plan the customer can replace the console by another new one any time (The console can be replaced only once for the customer).

? The customer can rent a console.However, there are a number of lease plans that the store like to offer its customers

1. Daily rental (for example renting the console for 2 days)

2. Monthly rental (for example rent the XBOX ONE console for 2 months with rental $20/month)

3. Yearly rental (for example rent the XBOX ONE console for $100/year)

I have created the following diagram, but I need to modify it using 3 design patterns on any kind. Thanks.

provide warranty to customer StoreManager Salesman Retailer Customer customerName productName productlD newConsoleNoReplac ement, newConsolewith1Year Replacement, newConsolewithLifetime Replacement, newGameConsole string; preownedGamesConsole String games String tablet String createCustomerAccount0; add0 delete0) update0) sells0 warranty0 create account for customer preOrderProducto; tradeinProducto; placeOrder) checkStatus0 cancelOrder) payForOrder0; enroll0 buyNewConsole) rentConsole create/delete/add product Sells console Sells games buy/rent console buy products GameMaker ConsoleManufacturer gameType Product differentAccessories String storeSpecialDiscount manufacturerRebates electronicArts0; activisionO take Twointeractive microsoft0; sony0 nitendo0: buyaccessories0 dailyRental(; monthlyRental; yearlyRental0 Receive email of special sale differentDiscounts0 Recieves email of new product EmailforNewProduct EmailforSpecial Sale productName productlD saleName salePercentage saleDateFrom saleDateUpTo Price modelO; saleltemsO DiscountO provide warranty to customer StoreManager Salesman Retailer Customer customerName productName productlD newConsoleNoReplac ement, newConsolewith1Year Replacement, newConsolewithLifetime Replacement, newGameConsole string; preownedGamesConsole String games String tablet String createCustomerAccount0; add0 delete0) update0) sells0 warranty0 create account for customer preOrderProducto; tradeinProducto; placeOrder) checkStatus0 cancelOrder) payForOrder0; enroll0 buyNewConsole) rentConsole create/delete/add product Sells console Sells games buy/rent console buy products GameMaker ConsoleManufacturer gameType Product differentAccessories String storeSpecialDiscount manufacturerRebates electronicArts0; activisionO take Twointeractive microsoft0; sony0 nitendo0: buyaccessories0 dailyRental(; monthlyRental; yearlyRental0 Receive email of special sale differentDiscounts0 Recieves email of new product EmailforNewProduct EmailforSpecial Sale productName productlD saleName salePercentage saleDateFrom saleDateUpTo Price modelO; saleltemsO DiscountO