Background The vending machine industry is evolving, with increasing demand for contactless and user-friendly experiences. Traditional vending machines often lack a seamless interface, requiring physical currency or cards, and offer limited product information. Users find it difficult to know product details (like nutritional information), experience payment hassles, and deal with unclear machine statuses (e.g., "out of stock" issues). To enhance user experiences and modernize vending services, there's a need for a dedicated app that allows users to interact with vending machines digitally, offering features like remote product selection, mobile payments, and machine status updates. Objective The goal is to design a vending machine app that: Improves user experience: Make the purchasing process more convenient and intuitive by enabling remote product selection, cashless payments, and real-time machine updates. Increases engagement and usage: Encourage users to choose vending machines over other purchase options by providing a modern and flexible shopping experience. Reduces operational issues: Minimize service downtime by providing maintenance alerts, stock level updates, and performance analytics to the vending machine operators. Metrics To measure the success of the project, the following metrics can be used: 1. Usability Testing Scores: Evaluate ease of use, learnability, and user satisfaction with tasks like product selection and payment processes. 2. Task Success Rate: The percentage of users who can complete tasks such as finding a product, making a purchase, or getting a refund without assistance. 3. Time on Task: Measure how long it takes for users to make a purchase or navigate through the app.