What is UI design?
UI design (user interface design) is the craft of designing the visual and interactive layer of a digital product, including layout, typography, color, buttons, forms and states. It is one part of user experience design, which also covers research, structure and how the whole product works.
Why it matters for your business
A clear, consistent interface makes software faster to learn and more trustworthy, which affects conversion on customer-facing sites and adoption of internal tools.
An internal approvals app gets a UI refresh with clearer status colors, larger tap targets and consistent forms, so field staff stop sending approvals by email instead.