<P> User interface design ( UI ) or user interface engineering is the design of user interfaces for machines and software , such as computers , home appliances , mobile devices , and other electronic devices , with the focus on maximizing usability and the user experience . The goal of user interface design is to make the user 's interaction as simple and efficient as possible , in terms of accomplishing user goals ( user - centered design ) . </P>
designing the correct elements for the tasks that the user is trying to perform is called
User interface design ( UI )