APLIKASI TOKO ONLINE DENGAN PAYMENT GATEWAY UNTUK MENINGKATKAN PENJUALAN MENGGUNAKAN METODE WATERFALL

XYZ Store sells various household products and is a family business that until now does not have a computerized system that can be used to make online purchases. So far, the store still makes sales using conventional methods, promotions from friends, word of mouth and using WhatsApp status updates. The limited reach results in relatively low sales. Sales have not been done online either using a sales system or social media. The purpose of making this paper is to build a website-based online store application so that the marketing reach is wider and sales increase. The development method uses a waterfall that starts from needs analysis, system design, writing in the form of programming coding, testing and implementation. System testing is carried out using the black box testing method to determine the suitability of the system to user needs. The system can help sell XYZ Store products with a wider reach. The system is built based on a website and in the future it is recommended that the system be developed based on mobile