Online Examination System - High Level Design

Student: Sambhav Mahajan | Subject: System Design (SRP & OCP Applied)

[User Management Module]

UserAuthenticationService

User / Student / Admin

Responsibility: Auth & Profile

[Exam Management Module]

ExamScheduler

Exam / QuestionBank

Responsibility: Scheduling & Content

[Question Types (OCP Applied)]

<<Interface>>

Question

+ evaluateAnswer()

MCQQuestion

TrueFalseQuestion

DescriptiveQuestion

[Evaluation Module (SRP + OCP)]

<<Interface>>

EvaluationStrategy

+ evaluate()

AutoEvaluation

ManualEvaluation

[Result Module (SRP)]

ResultGenerator

Result / ResultPublisher

Responsibility: Calc & Publish

[Notification Module (OCP Applied)]

<<Interface>>

NotificationService

+ notify(User)

EmailNotification

SMSNotification

PushNotification