DEVELOPMENT OF SMART MULTI SECTOR APPOINTMENT SCHEDULER SYSTEM

Efficient appointment management across multiple service sectors remains a persistent challenge for both customers and service providers. Existing solutions are typically limited to specific domains such as healthcare, salons, or education, requiring users to rely on multiple applications and platforms. This fragmentation leads to increased inconvenience, scheduling conflicts, and inefficient time management. To address this issue, this study presents the Smart Multi-Sector Appointment Scheduler System, a unified mobile application designed to support appointment scheduling across diverse service-based businesses.The proposed system is developed for the Android platform using Kotlin and Firebase, enabling secure, scalable, and real-time data processing. A distinguishing feature of the system is its dual-role architecture, which allows a single user to function as both a customer and a service provider. Customers can search for registered businesses, view available time slots, and book appointments, while service providers can register their businesses, define operating hours, configure services and fees, and manage bookings. Time slots are generated automatically based on business availability, and intelligent validation mechanisms are employed to prevent overlapping or duplicate bookings.Real-time data synchronization is achieved through Firebase Firestore, ensuring immediate updates for booking confirmations and cancellations. The system follows the Agile development methodology, facilitating iterative development and continuous improvement. Security is enforced using Firebase Authentication and Firestore Security Rules, ensuring that only authorized users can access or modify relevant data.Experimental testing demonstrates that the system performs reliably under different usage scenarios, maintaining synchronization accuracy and preventing scheduling conflicts. The proposed solution provides a practical and extensible foundation for multi-sector appointment management, with future enhancements including push notifications, in-app communication, online payments, and AI-based scheduling recommendations.