Q1: Hot Food (HF) is a newly established restaurant in Colombo. They are in the process of introducing food delivery service to the customers as well. Therefore, HF is planning to develop an online delivery order processing system to increase their sales. It should be easy-to-use by its employees and should provide a good response time for the customers. Orders are received from customers online who must select the items and expected time. The orders are recorded and prioritized according to preparation time, transport capacity, delivery time, and time of order. The output from the system will be the price of the order, and the expected time of delivery. The customer then has the option to confirm or reject the order. (i) Identify 2 functional requirements of the software system. () Suggest a suitable software process model to develop the above software system with justification. Q3: Draw a class diagram for following scenario by clearly stating your assumptions. A vending machine sells small, packaged, ready-to-eat items (chocolate bars, cookies, candies, etc.). Each item has a price and a name. A customer can buy an item, using a smart card (issued by the vending machine company) to pay for it. No other payment forms (i.e. cash, credit card) are allowed. The smart card records on it the amount of money available. The functions supported by the system are: sell an item (choose from a list of items, pay item, distribute item), recharge the machine, set up the machine (define items sold and price of items), monitor the machine (number of items sold, number of items sold per type, total revenue)