Question 2 (25 points) International School of Business operates a business programs in 10 different locations throughout Asia. The school had its first class of 900 graduates in 1965. The school keeps track of each graduate's student number, name, country of birth, country of citizenship, current address, and the name of each major the student completed (each student has one or more majors). To maintain strong ties to its graduates, the school holds various events around the world. Events have a title, date, location, and type (e.g. reception, dinner, or seminar). The school needs to keep track of which graduates have attended which events, i.e., attendance. For each attendance by a graduate at an event, a comment is recorded about information school officials learnt from that graduate at that event. The school also keeps in contact with graduates by mail, e-mail, telephone, and fax interactions. These remote contacts are treated as different class of interactions. Therefore, the school wishes to keep a separate record for them. The school records information learned from the graduate from each of these alumniinteractions as an update about the student along with the timestamp. When a school official knows that he or she will be meeting of talking to a graduate, a report is produced showing the latest information about the graduate and the information learned during the past two years from that graduate from all contacts and events the graduate attended.