KSR
System Design

Campus Event Management System

Event Lifecycle & Fast QR-Attendance Platform

An end-to-end digital portal for universities to coordinate event listings, student RSVPs, dynamic QR code check-ins, and organizer dashboards.

Year2026
StatusDeployed
Core DisciplineSystem Design

Overview

A comprehensive digital management ecosystem built to streamline campus student engagement, automate attendance check-in, and provide faculty organizers with live turnout metrics.

The Problem

Physical sign-in sheets and scattered event notices lead to disorganized entry lines, unverified attendance records, and high administrative workload.

The Solution

Engineered a centralized platform featuring dynamic cryptographic QR ticket generation on registration, paired with a web-based camera scanner for instant 1-second check-ins.

Key Capabilities & Features

01

Interactive event discovery feed with categorical filtering

02

One-click RSVP with instant encrypted QR pass generation

03

High-speed in-browser QR verification scanner

04

Organizer analytics panel with live turnout counters and capacity warnings

05

Role-based access control for students, organizers, and admins

System Architecture

Event Lifecycle & Verification Architecture

Orchestrates the entire student journey from discovery and RSVP to instant verification at venue entrance.

Phase 1Organizer publishes event with capacity & date rules
Phase 2Student registers & receives unique encrypted QR pass
Phase 3Volunteer scans pass with mobile browser camera
Phase 4Scanner service validates token against database and marks attendance

Technology Stack

ReactTypeScriptNode.jsExpressPostgreSQLQR Scanner APITailwind CSS

Technical Challenges

Designing a lightweight scanner module that operates smoothly across varying mobile camera resolutions and lighting environments.

Engineered Outcome

Eliminated manual attendance tracking, reduced entrance queue times significantly, and gave organizers accurate post-event analytics.