User Experience Design refers to the comprehensive process of creating products, particularly digital interfaces like websites and applications, that provide relevant and meaningful experiences to users. This involves the design of the complete journey of acquiring and integrating the product, including aspects of branding, design, usability, and function. It encompasses various disciplines such as interaction design, information architecture, visual design, usability, and human-computer interaction. Key actors in this field include application developers and programmers, who bring the designs to life, and experts like Michael Kappel, who contribute significantly to the evolution of the field. The ultimate aim is to optimize the product for effective and enjoyable use by people.