This study aims to design a web-based badminton court reservation information system for Fuji Arena to support digital transformation in operational management. The existing manual system, which relies on WhatsApp and handwritten records, poses risks of double bookings, transaction data loss, and limited information regarding court availability. The development method employed is the Software Development Life Cycle (SDLC), with data collected through literature reviews, interviews, and observations. The system was designed using UML, including Data Flow Diagrams (DFD), Use Case Diagrams, Sequence Diagrams, Activity Diagrams, and Entity Relationship Diagrams (ERD). The design results indicate that the proposed system is capable of integrating reservation management, real-time court availability checking, digital payments through a payment gateway, and automated financial reporting. This study is limited to the analysis and design stages; therefore, system implementation and testing are recommended for future research.
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