UI
UI is the point of interaction between a user and a digital system—whether it’s a website, mobile app, or software platform. It includes visual elements like typography, colors, buttons, icons, and input fields, all designed to guide user behavior.
A good UI is clear, consistent, and responsive, helping users accomplish tasks easily and efficiently. UI design involves creating layouts that support usability and reflect brand identity. While often mentioned alongside UX (User Experience), UI focuses on the look and feel, while UX focuses on overall functionality and flow. Modern UI can span across different types, such as graphical interfaces (GUI), voice interfaces (VUI), and gesture-based systems. UI design also plays a major role in accessibility and device responsiveness.
Tools like Figma, Sketch, and Adobe XD are commonly used to prototype and test UI. A strong UI improves engagement, reduces user errors, and enhances satisfaction with digital products.