User Experience (UX)
User experience (UX) is the overall experience a person has when using a product, service, or system, including how useful, easy to use, accessible, and satisfying it is.
UX covers everything a person perceives and feels before, during, and after using something, from finding a feature to recovering from an error. UX design is the practice of shaping that experience on purpose, usually through research, information architecture, interaction design, prototyping, and testing with users. Good UX is judged by outcomes for the person, such as whether they can finish a task, how much effort it takes, and whether they would choose to use the product again.
UX is often confused with user interface (UI) design. UI is the visible layer, such as screens, buttons, and layouts. UX is broader and includes whether the product solves the right problem in the first place. UX is also different from customer experience (CX), which covers every interaction a customer has with an organization, including sales, billing, and support. A product can look polished and still have poor UX if people can't complete the tasks they came to do.
Key parts
Usefulness. The product meets a real need.
Usability. People can complete tasks efficiently and without confusion.
Accessibility. People with a wide range of abilities can use it.
Credibility. People trust the product and the information it gives them.
Satisfaction. Using it feels worthwhile rather than frustrating.
