User Experience Design (UXD): -

“User Experience Design (UXD or UED) is a design process whose sole objective is to design a system that offers a great experience to its users. Thus UXD embraces the theories of a number of disciplines such as user interface design, usability, accessibility, information architecture, and Human Computer Interaction.

User experience design (UXD or UED) is the idea of designing software products and systems to be useful to a set of end users. It is a broad-level concept that is applied during the design process. It covers the technical use of a product or service, and its essential physical interface, or how humans encounter the technology in the field.