In an online shopping system the main entities for online shopping are Customer, Web User, Account, Shopping Cart, Product, Order, Payment, etc. and relationships between them. Each customer has unique id and is linked to exactly one account. Account owns the shopping cart and orders. Customer could register as a web user to be able to buy items online. Customers are not required to be a web user because purchases could also be made by phone or by ordering from catalogs. Web users have a login name which also serves as a unique id$.$ Web user could be in several states $-$ new, active, temporary blocked, or banned, and be linked to a shopping cart. Shopping cart belongs to the account. Account owns customer orders. Customers may have no orders. Customer orders are sorted and unique. Each order could refer to several payments, possibly none. Every payment has a unique id and is related to exactly one account. Each order has a current order status. Both order and shopping cart have line items linked to a specific product. Each line item is related to exactly one product. A product could be associated with many line items or no item at all. $1.$ Draw a Domain class diagram for the scenario $2.$ Draw the use case diagram for the scenario. $3.$ After you have finished