PENGEMBANGAN SISTEM PENJUALAN PRODUK DIGITAL DENGAN PENGIRIMAN AKUN OTOMATIS MENGGUNAKAN METODOLOGI RAD

Abstract

The rapid growth of subscription-based digital services in Indonesia creates significant business opportunities. However, many digital business owners still rely on manual processes for QRIS payment verification and account delivery, which often result in errors such as duplicate transactions, inaccurate stock distribution, and increased order abandonment, especially during non-productive hours (22:00–05:00 WIB). This study aims to develop a web-based digital product sales system for Premku.com that ensures transaction accuracy and operational efficiency. The system was developed using the Rapid Application Development (RAD) approach, focusing on automating payment verification, ensuring real-time stock control, and streamlining digital product delivery. Accuracy is achieved through automated transaction validation using unique payment identifiers, real-time stock synchronization to prevent double-selling, and a controlled transaction process that minimizes human intervention. In addition, secure authentication mechanisms are implemented to maintain data integrity. Black-box testing was conducted to evaluate system performance under various conditions, including high transaction loads, payment validation, and process reliability. The results show that the system successfully eliminates duplicate transactions, maintains consistent stock accuracy, and significantly reduces processing time for each order. Overall, the developed system improves accuracy, efficiency, and reliability in digital product distribution, while enabling continuous 24-hour operation. This contributes to better user experience and supports business scalability in the digital service sector.