1. Explain your choice of the 3 most useful investigation techniques that you have used to investigate the new automated information system, Education in Australia (EIA) and the reasons for choosing them. 2. After you have analysed your collected information from EIA, produce the following UML diagrams for EIA as the specifications for a new automated information system, Education in Australia Information System (EIAIS). A. Use Case Diagram – • With all the critical use cases in the entire system B. Domain Model Class Diagram – • With all important classes needed in the entire system C. An Activity Diagram – • Assume that admin staff is an actor using the new system for retrieving an existing student’s record. The system helps the admin staff to locate an existing student. With information of the located existing student, the admin staff will place a new fee paying order for the existing student. Use 2 swimlanes as an actor (Admin staff) and a system class object to show the above system work flows. D. A System Sequence Diagram – • Assume that a student is an actor using the new system for printing a timetable for his enrolled courses. Show this specific system process in a system sequence diagram.