Agile methodology is a set of principles and practices that guide project management and software development processes. It advocates for adaptive planning, evolutionary development, early delivery, and continuous improvement. Agile teams work in short, time-boxed iterations called sprints, focusing on delivering valuable functionality to customers at regular intervals. The key principles of Agile methodology include customer collaboration, self-organized teams, frequent communication, and embracing change. By prioritizing close collaboration between cross-functional team members and stakeholders, Agile methodology enables faster feedback, increased transparency, and the ability to respond to changing requirements and market conditions. Popular frameworks and methods within Agile methodology include Scrum, Kanban, Lean, and Extreme Programming (XP).