According to Nielsen Norman Group, 'user experience' includes all the aspects of the interaction between the end-user with the company, its services, and its products.
Frederick Winslow Taylor and Henry Ford explored ways to make human labor more efficient and productive.
Taylor's research into the efficiency of interactions between workers and their tools is the earliest example that resembles today's user experience fundamentals.
[citation needed] The term user experience was brought to wider knowledge by Donald Norman in the mid-1990s.
A review of his earlier work[6] suggests that the term "user experience" was used to signal a shift to include affective factors, along with the pre-requisite behavioral concerns, which had been traditionally considered in the field.
Many usability practitioners continue to research and attend to affective factors associated with end-users, and have been doing so for years, long before the term "user experience" was introduced in the mid-1990s.
[7] In an interview in 2007, Norman discusses the widespread use of the term "user experience" and its imprecise meaning as a consequence thereof.
Overall user experience is also influenced by factors outside the actual interaction episode: brand, pricing, friends' opinions, reports in media, etc.
Another branch is interested in understanding the long-term relation between user experience and product appreciation.
The industry sees good overall user experience with a company's products as critical for securing brand loyalty and enhancing the growth of the customer base.