Question 3 a) Draw a use case diagram based on the case study given below. Your diagram should contain at least 3 actors, 8 use cases, and 2 include and 2 extend relationships. Shopping Made Easy System A customer uses Shopping Made Easy System for online shopping. System requires the customer to sign up and sign in to be able to interact with the system. Customer registration is verified by the administration. A customer may use the portal as a guest without signing up but is only able to view catalogues in case of a guest. A customer can manage his/her account which involves signup/sign in and profile management. A customer can browse through catalogues to view different products; customer can also search for a specific catalogue by name or code number. Customer can view the products and can log out without buying. Another main feature of the system is Shopping cart management. Customer can add or remove items in cart. Customer can check which items have been added to cart at any time and can increase or decrease the quantity of items. Once the desired items are added in the cart, customer can place the order which involves payment process. Payment can be made through Debit/ Credit card. Once payment is gone through systems generates order summary, which shows purchased items and payments details. Catalogues management is administered, to maintain system security, administrating staff also needs to login to be able to use the system. Administration also verifies and accepts customer requests for registration