User interface design
Not to be confused with graphic/visual design, user interface design aims to create intuitive interfaces and make the user’s experience as straightforward as possible.
User Interface Design involves the design of a website’s interface, and ensuring that they are usable for all users - often an involved process.
User interface design with a strong focus on usability is also referred to as user-centred design. User interface design is usually the pre-cursor to visual design.