User Experience (UX) – usually in relation to User Experience Design.
Some places to get definitions of user experience:
* Wikipedia – User experience design (English, Dec 1 2008)
“User experience design is a subset of the field of experience design which pertains to the creation of the architecture and interaction models which impact a user’s perception of a device or system. The scope of the field is directed at affecting all aspects of the user’s interaction with the product: how it is perceived, learned, and used.”
“User Experience (abbreviated: UX) is the quality of experience a person has when interacting with a specific design. This can range from a specific artifact, such as a cup, toy or website, up to larger, integrated experiences such as a museum or an airport.”
“User experience encompasses all aspects of the end-user’s interaction with the company, its services, and its products. The first requirement for an exemplary user experience is to meet the exact needs of the customer, without fuss or bother. Next comes simplicity and elegance that produce products that are a joy to own, a joy to use. True user experience goes far beyond giving customers what they say they want, or providing checklist features. In order to achieve high-quality user experience in a company’s offerings there must be a seamless merging of the services of multiple disciplines, including engineering, marketing, graphical and industrial design, and interface design.”