The UML class diagram of an online examination system depicts important interactions between the user, exam, question, answer, result, examiner, and notification. It represents the entire process, wherein users register for exams, take them, and examiners prepare and assess them.
Each class carries in itself numerous variables and functions. The diagram is intended for the developers as it demonstrates the way the system will manage examinations, provide answers, generate results, and ultimately provide a better experience for students and administration alike in conducting examinations.
