Use case diagram for pizza ordering system

You have been asked to develop a pizza ordering application. Here is the information your manager just shared with you about this software development project.

The pizza ordering application allows customers with a web browser to order pizza for home delivery. To place an order, a customer would search to find items to purchase (specialty pizzas, sodas, desserts, salads, etc.), and then add items one at a time to a shopping cart. They could also view a page that showed the daily special. The customer could search again for more items if they wanted. They would also have the option to build their own pizza with as many toppings as they liked. When all items were chosen, the customer would see the cost of their order, and also be prompted to provide a delivery address for that specific order. If not paying with cash, the customer would provide credit or debit card information for use on the current order. The system should have an option for customers to register with the pizza shop. They could then save their name, address information and e-mail address, so that they wouldn’t have to enter this information every time they placed an order. If they didn’t want to save their personal details on the site, they could register their e-mail address only, which would let them receive coupons and updates on special promotions.

To complete this assignment, make assumptions as needed--just be sure to document any assumptions you make. Remember: "When in doubt sound convincing."

1. Identify the following information about the pizza ordering application:
a. Purpose or goal of the system
b. Primary user(s) of the system
2. Generate an Activity UML diagram that starts with the customer connecting with the web site and ends with the driver receiving the address (along with the pizza). I am looking for a very focused and specific UML Activity diagram here. I want the diagram to show me the process of what happens between the time that the customer connects to the website and the driver gets the pizza and address. Note that the cooks will also interact with the process at some point - identify the step or steps where the cook interacts with the system. Number each element of the activity diagram. The activity diagram must contain a minimum of 10 elements.