Agile is an approach to software development (and project management) that emphasizes iterative progress, collaboration, and adaptability. Instead of a rigid, lengthy development cycle, Agile breaks work into smaller increments (often called sprints, typically 1–2 weeks long) during which a cross-functional team develops and delivers a piece of the product. Agile principles encourage responding to change quickly rather than following a fixed plan — meaning the team continuously refines the product based on feedback and evolving requirements. For UX designers, working in an Agile environment often means designing and testing in cycles, collaborating closely with developers, and making incremental improvements to the user experience. Agile contrasts with more linear approaches like Waterfall (see “W”), where all design is completed before implementation begins.