This document presents information on attendance systems. It defines attendance as the action of going regularly to or being present at a place or event. It describes an attendance management system as software used to maintain student attendance in educational institutes on a daily basis, with staff responsible for marking attendance. It discusses manual attendance systems requiring paper filling, and automated web-based systems allowing login by department and classroom. Problems with manual systems include human error, time theft, inefficiency, and incorrect entries, while automated systems can use RFID, biometrics, built-in tracking, or QR scanning to record attendance automatically.