How a user orients themself through a website, app, or other digital product

Measures, collects, analyzes, and reports user behavior on a website

WCAG are focused on providing international technical standards for web content. There are 12 guidelines that are organized under four principles: perceivable, operable, understandable, and robust. The guidelines each have testable success criteria, which are at three levels: A, AA, and AAA.

The blank space that appears between graphics, columns, images, text, or other objects; when used effectively, white space increases legibility and readability [See negative space]

A small application, or a component of an interface, that displays information or enables a user to perform a function or access a service

A skeletal layout created for testing and feedback purposes that is stripped of visual design but acts as blueprint for a website or application—can range in fidelity from low to high [See high-fidelity prototype and low-fidelity prototype]