Developing a Used Goods Trading Application Using Model View ViewMode and the Prototype Method

Abstract

The rapid growth of digital platforms has transformed how secondhand goods are traded, especially among Generation Z. However, existing platforms often fail to address local market needs, particularly in areas like Bengkalis, where users struggle to find relevant items due to poor localization and unintuitive interfaces. This research aims to develop an Android-based secondhand goods trading application by applying the MVVM (Model-View-ViewModel) architecture and the Prototype method. The application includes core features such as product listing, real-time chat, location-based search, category filtering, and user profile management. The development follows five stages of the prototype method: communication, quick plan, modeling quick design, construction of prototype, and deployment with user feedback. Evaluation results show that the application functions effectively, offers a responsive and intuitive interface, and meets user expectations—especially in terms of performance, stability, and usability. Comparative benchmark testing confirms that the MVVM-based version is 37% faster in loading time, uses 27% less memory, and reduces database requests by 83% compared to a non-MVVM counterpart. This research successfully demonstrates that MVVM architecture, when combined with the Prototype method, yields a maintainable, scalable, and user-friendly application tailored for the local secondhand market in Bengkalis.