What is User experience design ?
User Experience (UX) Design is a process which used by the design team whose sole objective is to design a system that offers a great experience to its users. Thus UXD embraces the theories of many topics such as user interface design, usability, accessibility, information architecture and human-computer interaction.
User experience design is a vast, multi-subject and attractive area. It shapes the products and services we use every day and can make or break the success of a business or brand. User experience (UX) is how a person feels when interfering with a system. This system can be a website, web application, or desktop software, and in modern contexts, usually represented by some form of human-computer interaction (HCI). Study and evaluate how users feel about the system, look at things like ease of use, understanding of the value of the system, usefulness, efficiency in performing tasks.