1. The H.I. Topi School of Business operates international business programs in 10 locations throughout Europe. The school had its first class of 9,000 graduates in 1965. The school keeps track of each graduates student number, name when a student was at H.I. Topi, country of birth, current country of citizenship, current name, current address, and the name of each major the student completed. (Each student has one or two majors.) To maintain strong ties to its alumni, 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. For an attendance by a graduate at an event, a comment is recorded about information school officials learned from that graduate at that event. The school also keeps in contact with graduates by mail, e-mail, telephone, and fax interactions. For each contact, it is important to know which school official made the contact, the date for the contact, as well as information learned from the graduate.

Draw the ERD for the above scenario. State any additional assumptions you believe you have to make in order to develop a complete diagram.