Consider the following high-level description for

Consider the following high-level description for OutdoorPowerEquipmentDepot retailer:

• The intent is to build an object-oriented application that will allow the customer to buy, trade-in, or rent equipment from the retailer either in-store or online
• The store has a StoreManager, Customers, and Salesmen
• The retailers sells, trade-in, lease new and pre-owned products
• The StoreManager can Add/Delete/Update products
• Only the StoreManager can create special-discounts for the different products
• Salesmen and StoreManager can create Delete/Update customer accounts and orders
• Marketing staff can execute queries to generate reports about the products, orders, customers, etc.
• Manufacturer can offer rebates for certain products
• Some of the products may have store special-discounts
• Some of the products may have manufacturer rebates
• There are number of equipment Manufacturers and each offers its own models.
• Every equipment has an extended warranty plan that could be bought separately from the retailer
• The customer can choose one of the following options when buying a new equipment
  1. Buy the new equipment with no replacement
  2. Buy the new equipment with 1 year replacement for 50% fee of the equipment retail price; under this plan the customer can replace the equipment by a new one any time during the year (Equipment can be replaced only once for the customer).
  3. Buy the new equipment with lifetime replacement for 65% fee of the equipment retail price; under this plan the customer can replace the equipment by another new one any time (Equipment can be replaced only once for the customer).
• The customer can trade-in equipment
• The customer can rent equipment. However, there are a number of lease plans that the store like to offer its customers
  1. Limited duration rental (for example renting an equipment for 2 days)
  2. Single season rental (for example rent a snow blower for the entire winter season for a $100 fee per season)
  3. All seasons rental (for example the customer gets a snow blower for winter and a lawn mower for spring/summer for $150 fee annually)
• The customer can place an order, check the status of an order, or cancel an order.
• The customer can choose home-deliver or in-store pickup for the equipment rental. Equipment delivery or pick up shall be done within a reasonable amount of time after order is placed by the customer.
• The customer can pay in cash, check, or credit card
• Customers who are renting equipment must be at least 25 years old, have a valid ID and credit card.
• The customer has the choice to enroll (or cancel) and become PowerMember in order to receive 5% discount for every item purchased or leased for an annual fee of $30
• Some of the equipment may have store special-discounts
• Some of the equipment may have manufacturer rebates
• The Customer or salesman can determine the current market-value of the trade-in equipment through the PowerEquipmentTradeinMarket using the serial number of the equipment, date bought, and current condition (excellent, average, poor)
• Due to storage space limitation, the store requires to have at least 50% of its rental equipment be leased out to its customers at any time. If that threshold is violated, the store will send 25% discount promotional lease offers through email to its customers in an attempt to reduce the number of equipment in its rental storage
• To minimize the cost of restocking new equipment at the end of every season (winter and summer mainly), the retailer email its customers about the 20% discount for the clearance event at the end of every season.

Create the UML-Use case diagram, UML design class diagram using 3 design patterns, and create a Sequence diagram for the application.