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BUÜ Smart Attendance System

A web-based smart attendance platform designed for university-wide use at Bursa Uludağ University. The system combines dynamic QR-based attendance, configurable presence verification, academic-system integration and auditable attendance sessions within a scalable architecture. Students participate directly through their mobile browsers without requiring a dedicated mobile application.

Start: 2026-09-28

My role

Project Owner, Software Architect & Lead Developer

Key technologies

C#.NET 10ASP.NET Core Web APIAngular 22TypeScriptEntity Framework CoreSQL ServerRedisREST APIClean ArchitectureModular MonolithQR CodeSHA-256

Overview

The Smart Attendance System is a web-based institutional platform developed to modernise classroom attendance processes at Bursa Uludağ University. The system is designed around scheduled courses and attendance sessions rather than isolated QR scans. Instructors access their scheduled lessons, create an attendance session and activate it for the relevant course. Each session follows a controlled lifecycle including Created, Active and Closed states, with additional states for cancellation and expiration. When a session becomes active, the platform generates a secure QR-based attendance mechanism that can be displayed in the classroom. Students scan the QR code using their mobile browser and participate without installing a separate mobile application. Attendance is not treated as a simple QR validation problem. The platform validates the student's relationship with the course, prevents duplicate durable attendance records and applies the verification policy defined for the session. Presence verification was designed as a configurable capability rather than a hard-coded rule. Location-based verification can be enabled according to institutional requirements and device capabilities, while additional verification mechanisms can be controlled through system-level policies. Verification settings are captured as immutable session snapshots so that the rules applied to an attendance session remain traceable even if global configuration changes later. The system integrates with university authentication, academic scheduling, course and enrolment services through institutional REST APIs. External systems are isolated behind integration adapters, keeping university-specific dependencies outside the core attendance domain. The backend follows a Modular Monolith and Clean Architecture approach using .NET 10. SQL Server stores durable attendance, session, policy and audit data, while Redis is used for distributed caching and short-lived state. The API is designed to remain stateless where possible, supporting horizontal scaling during high-concurrency periods such as the beginning of simultaneous classroom sessions. The frontend is implemented with Angular 22 and provides protected interfaces for students, instructors and administrative users. Role-based access control, auditability and administrative configuration are treated as core system requirements rather than supplementary features. The project is being developed incrementally with automated backend and frontend testing, allowing attendance workflows, institutional integrations and verification policies to evolve without tightly coupling the system to a single verification technology.

BUÜ Smart Attendance System

My role

Key technologies

Overview

Research problem

Method