Design and Implementation of Smart Attendance System Using QR Technology

Abstract

Traditional manual attendance methods are often inefficient, time-consuming, and susceptible to manipulation, specifically through proxy attendance. This project details the development of the “Smart Attendance System using QR technology,” a cross-platform mobile application built on the Flutter framework designed to streamline and secure the academic attendance process. The system operates on a dual-user model where teachers generate time-constrained QR codes for specific classes, requiring students to scan the code within a designated window to mark their presence. A central feature of this application is its robust security mechanism designed to eliminate proxy attendance; this is achieved by enforcing a device-binding protocol that restricts a student account to a single device, thereby preventing multiple students from logging in or submitting attendance from the same phone. Furthermore, the system ensures data integrity by restricting students to their assigned sections and includes a manual override feature for teachers to manage exceptional cases. By integrating real-time validation, device level security, and a user-friendly interface, this system offers a rapid, error-free, and transparent solution for modern classroom management.