User Interface / User Experience (UI/UX) creates evidence-based, interaction designs between human users and products or websites. Design decisions in UX Design are driven by research, data analysis, and test results rather than aesthetic preferences and opinions. Unlike User Interface Design, which focuses solely on designing a computer interface, UX Design encompasses all aspects of a user's perceived experience with a product or website, such as its usability, usefulness, desirability, brand perception, and overall performance. UX Design is also an element of the Customer Experience (CX), which encompasses all aspects and stages of a customer's experience and interaction with a company.