UI definition: UI is an acronym of User Interface; it refers to the portions of a device, website, software, or application that a user interacts with.
UI applies to both the physical and virtual elements of a device; from the keyboard of a computer, through to the color palette of a website.
UI plays a strong role in branding and can impact:
For example:
The IKEA website uses its UI to showcase consistent:
That pair with their offline, in-store, experience.