UX and UI Strategy: A step by step Guide on UX and UI design This book analyzes how Don Norman originated the word "User Experience Design" in the 1990s and it means a person's perception or feeling towards using a product, service, website or software. Steps on how to develop user experience includes: User interface (UI) is the process by which users (people) interact with a product or service. The UI includes hardware and software components. User interface exists for various processes and provides a means of input and output.