Part 1: Software Evolution (5 marks) 1. Specify two advantages of reengineering process compared to replacement (1 mark) 2. Suppose two system maintenance requests have emerged for the stock control for the supermarket chain system (i.e., the description of this system has been given in Tutorial 3 assignment) in the following situations: Maintenance request 1: inventory tracking with a new method (e.g. Quick Response Code) is needed to be added to the system Maintenance request 2: This situation is based on the mix payment method where a customer can use multiple methods of payments, such as cash and card, in a single transaction. Suppose a customer decides to pay using cash and card. First, the customer pays a portion of the full amount through cash and the balance using the card. In this case, it has been identified that the system incorrectly charges the amount paid in cash from the Specify what categories of system maintenance are specified above (2 marks) a. Assume that you are performing an impact analysis of the changes. Identify a consequence that could occur due to each of changes specified above (2 marks) b