1. This is an example of Object-Oriented Modeling diagram.
To answer the second question in Unit 4, please create your own answer
(do not use this example).
Student (Example of Instance: Michael)
Attribute: RedID, year, classes, account, blackboard account, …
Behavior: Register, enroll, add and drop, study, etc
Relationships: Enroll classes, study classes
Class (Example of Instance: GEOG 104)
Attribute: Course code, instructor, student list,
Behavior: Teach students
Relationships: Enrolled by students, use a classroom
Classroom (Example of Instance: SH-342)
Attribute: Building name, room number, the number of desks and chairs, schedules
Behavior: Provide a room for classes
Relationships: Allocated to classes
Class
Class Name
Teach    1
Student
Classroom
RedID
Class Room #
Enroll, Study
Provide a room