Jesse James Garrett
Jesse James Garrett is a User Experience Designer based in San Francisco, California and co-founder of Adaptive Path strategy and design consulting firm. His diagram titled The Elements of User Experience launched his popularity in the web design community in early 2000, which was later published as a book. In a 2005 paper, Garrett coined the term Ajax to describe the asynchronous technology behind emerging services like Google Maps and Google Suggest, as well as the resulting user experience which made it possible to browse without interruption by eliminating the reloading of the whole page.
Garrett’s works include ia/recon, an essay on the evolution of the information architecture field, and The Nine Pillars of Successful Web Teams, a conceptual model similar to Elements for team structures and processes. In his most well known endeavour, Garrett coined the term Ajax in February 2005 to describe the information behind asynchronous Javascript and XML. Although he was not the only one working on the development of this technology, Garrett thought of the term in the shower when he realized the need for a shorthand term to represent the suite of technologies he was proposing to a client.
Source Wikipedia
Other references
Los elementos de la experiencia de usuario (Jesse James Garrett – Adaptado por Hint)