$*$human expert only$*$ Creating Use Case Diagram, Class Diagram, and Activity Diagram With a real human expert.

Suppose that you will build new system which handle the following scenario:

$$ The customer browses the product catalog and finds the product he wants to buy.

$$ The customer adds the product to his shopping cart.

$$ The customer checks out and pays for the product.

$$ The customer service team ships the product to the customer$$s address.

$$ The customer receives the product.

The failure scenario might run like this:

$$ The customer browses the product catalog and doesn$$t find the product he wants to buy.

$$ The customer abandons the cart and leaves the website.

Or

$$ The customer adds a product to his shopping cart.

$$ The customer checks out and pays for the product.

$$ The customer decides he doesn$$t want the product before it ships.

$$ The customer service team cancels the order.

Draw Use Case Diagram, Class Diagram, and Activity Diagram for this scenario