frontendbackendservicedatabasecdn

E-Learning Platform

Coursera-like platform with video courses, quizzes, certificates, progress tracking, and live classes.

9 components8 connections5 types

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Components

frontend

Learning Portal

Course catalog, video player with notes, quiz interface, and progress dashboard.

backend

API Server

Course enrollment, progress tracking, quiz grading, and certificate generation.

service

Video Service

HLS adaptive streaming, subtitle management, and playback position sync.

service

Quiz Engine

Question banks, randomization, auto-grading, and plagiarism detection.

service

Progress Tracker

Completion percentage, streak tracking, learning path recommendations.

database

Course Database

Course content, modules, lessons, instructor profiles, and reviews.

database

User Database

Enrollments, progress, quiz scores, certificates, and payment history.

cdn

Video CDN

Edge-cached video segments for low-latency playback worldwide.

service

Certificate Service

PDF generation with verification QR code and blockchain-anchored proof.

Data Flow

Learning PortalAPI ServerHTTPShigh

Learning PortalVideo CDNVideo streamhigh

API ServerCourse DatabaseCataloghigh

API ServerUser DatabaseEnrollmenthigh

API ServerQuiz EngineGrademedium

API ServerProgress TrackerTrackhigh

Video ServiceVideo CDNDistributehigh

Progress TrackerCertificate ServiceCompletedlow

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