Student attendance is a crucial indicator of discipline in the teaching and learning process. However, SMKN 1 Panumbangan still uses a conventional attendance system that causes delays in data processing for E-Report needs and real-time monitoring. The manual recording process takes 10-15 minutes per class, monthly recapitulation requires 3-5 working days, and physical documents are vulnerable to loss or damage. This research aims to design and implement a web-based student attendance system equipped with a selfie feature as a form of physical presence validation. The development method used is Agile with a prototype approach, chosen for its adaptive, flexible, and user satisfaction-oriented nature in facing the dynamic needs of educational institutions. The development was carried out through three iterations: Iteration 1 built the authentication foundation and data management, Iteration 2 developed the core attendance module and permission management, and Iteration 3 refined the system with dashboards and operational deployment. This system involves three main roles: Admin, Homeroom Teacher, and Student, focusing on the efficiency of attendance data recapitulation. The Black Box testing results on 39 scenarios showed a 100% success rate. The evaluation of administrative time efficiency reached an average of 90.6%, and the System Usability Scale (SUS) obtained a score of 87.6 with the category "Excellent". The result of this research is a digital platform capable of minimizing fraud through visual validation and accelerating the preparation of monthly and semester reports for the school. With this system, it is expected that the school management of SMKN 1 Panumbangan can transform towards more integrated and efficient governance in the Industry 4.0 era.
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