This document outlines the expected technical architecture and platform requirements for the development of the Matsci Odia online education system, including web and mobile applications.
The platform consists of:
- A Mobile App for students (Android & iOS)
- A Web Portal for teachers and admins
- A cloud-based backend for service orchestration and media storage
- Live class integration with a streaming provider
📱 2. Mobile Application (Students)
- Android (API 24+)
- iOS (iOS 12+)
Key Features
- OTP and Google sign-in
- Course browsing and enrollment
- Join live classes with video and chat
- Raise hand and speak (controlled by teacher)
- Access lecture recordings
- Attempt MCQ/Subjective tests
- Upload answer sheets
- Batch-specific chat rooms
Recommended Tech
- Framework: React Native (single codebase) or Flutter
- Video SDK: Agora / Zoom (for stability & mute control)
- Storage: AWS S3 / Cloudflare R2 (for videos, notes, and tests)
- Notifications: Firebase (Android), APNs (iOS)
- Offline Mode: Cache recent content for slow/no internet
🚀 Suggestions
- Use adaptive bitrate streaming to support low-bandwidth students
- Implement background retry queue for exam uploads
- Compress and optimize assets for low-end phones
🧑💻 3. Admin / Teacher Web Portal
Key Features
- Schedule and run live sessions
- Upload class content (PDF, DOC, Video, etc.)
- Create and evaluate quizzes and exams
- Manage users (teachers/students)
- Access dashboards and usage metrics
- Apply and manage coupons/subscriptions
Recommended Tech Stack
| Layer |
Tech Stack |
| Frontend |
React.js (with Tailwind or MUI) |
| Backend |
Spring Boot (Java), RESTful APIs |
| DB |
PostgreSQL on AWS RDS |
| Streaming |
Agora / Zoom / Jitsi (pluggable) |
| File Storage |
AWS S3 or Cloudflare R2 |
| CI/CD |
GitHub Actions |
💡 Suggestions
- Use Role-Based Access Control (RBAC) with Spring Security
- Organize content in S3 using course→batch→session structure
- Enable pre-signed uploads for student answer sheets
- Use pagination, filters, and caching for high-volume pages
- Add CSV export/import for managing large student rosters
🔒 4. Security
Essentials
- All endpoints secured with JWT or OAuth2
- Passwordless auth via OTP (login link/phone code)
- HTTPS enforced across all layers
- Secure multipart upload for large files
- Audit logs for all admin actions
- Encrypt PII at rest and in transit
🚨 Suggestions
- Use rate-limiting and CAPTCHA for public APIs (e.g. login)
- Add IP/location logging for admin access
- Integrate with Vault or AWS Secrets Manager for secure config
Requirements
- App load < 3s on 3G connections
- Handle 5+ parallel classes with 1000+ students each
- Low-latency chat and audio (under 300ms)
- Dynamic scaling of services and media delivery
Suggestions
- Use CDN (CloudFront, Cloudflare) for static & video content
- Scale backend via Kubernetes or ECS Fargate
- Use Redis caching for course data and test metadata
- Employ WebSocket or MQTT for real-time chat
📦 6. Infrastructure
| Component |
Suggested Service |
| Hosting |
AWS / GCP / Azure |
| CI/CD |
GitHub Actions |
| DB |
AWS RDS (PostgreSQL), daily backup |
| Object Storage |
AWS S3, lifecycle policy enabled |
| Domain |
Route53 / Cloudflare DNS |
| Monitoring |
Prometheus + Grafana / New Relic |
DevOps Suggestions
- Use Terraform or IaC for infrastructure provisioning
- Set up stage & prod environments with clear config
- Enable autoscaling & alerting
📊 7. Analytics and Observability
Requirements
- Track user behavior: logins, class joins, test activity
- Monitor backend latency and availability
- Alert on service failures and high load
- Frontend: Google Analytics + Custom Events
- Backend: Prometheus, Loki, Grafana
- Error Tracking: Sentry or Firebase Crashlytics
📌 8. Engineering Notes
- All APIs must be versioned (e.g.
/api/v1/...)
- Use OpenAPI (Swagger) for backend contract documentation
- Structure repos into mono-repo or clearly named services
- Use
.env files with .example templates
- Store large file uploads via S3 pre-signed URLs
- Provide dark mode toggle for better UX
- Maintain strong automated test coverage (unit + integration)
📘 Summary
| Area |
Stack / Tool |
| Mobile App |
React Native / Flutter |
| Web Frontend |
React + Tailwind / MUI |
| Backend Services |
Spring Boot + JWT |
| Database |
PostgreSQL (RDS) |
| File Storage |
AWS S3 |
| Live Video |
Agora / Zoom SDK |
| DevOps |
GitHub Actions + Docker |
| Analytics |
Google Analytics + Prometheus |
| Real-time Comm |
WebSocket / MQTT |
💡 Optional Future Features
- Offline access to downloaded lectures
- Gamified quiz results and streak tracking
- Course recommendations using ML
- Native LMS plugin compatibility (SCORM/xAPI)
- Video transcription and subtitle generation