Mobile Application for Army Polytechnic Smart Card Transactions Using NFC and QR Code

Telekomunikasi Militer

Abstrak

This research aims to design and build a mobile application for smart card transactions based on Near Field Communication (NFC) technology with QR Code validation at the Army Polytechnic (Poltekad). The application was developed using the React Native framework with JavaScript programming language and Expo development tools, integrated with the web-based personnel management system through REST API. Key features include NFC-based balance top-up and fund transfer with an anti-cloning mechanism that regenerates identification codes after each successful transaction, QR Code scanning for personnel membership verification, digital smart card display, and transaction history recording. The development method used is Waterfall consisting of requirements analysis, system design, implementation, testing, and maintenance stages. System testing was conducted using Black Box Testing to verify functionality. The testing results show that all 12 test scenarios were successfully executed with a 100% success rate, and the average response time for NFC transactions was 1.87 seconds while QR Code verification averaged 1.42 seconds. This application provides a practical and secure digital solution for smart card transactions and membership verification at Poltekad.