Agile is a project management and development method that focuses on flexibility, incremental delivery, and close collaboration with customers. Originating from the Agile Manifesto in 2001, this method enhances product quality through continuous delivery and fast feedback.

Agile manages complex, changing projects using self-organizing teams. It breaks projects into smaller parts and delivers them in short cycles (2–4 weeks). Common Agile frameworks include Scrum and Kanban. Although it began in software development, Agile is now used in marketing, product development, and operations management.