Define "agile methodology."

Agile methodology is defined as an approach emphasizing flexibility and collaboration. This is rooted in the Agile Manifesto, which values individuals and interactions, working software, customer collaboration, and responding to change over following a rigid plan. Agile methodologies, such as Scrum and Kanban, promote iterative development, allowing teams to improve continuously and adapt to changing requirements throughout the project lifecycle. This focus on collaboration fosters teamwork and encourages customer feedback, leading to products that better meet user needs. The flexibility inherent in agile practices allows teams to pivot quickly in response to new information or shifting project demands.

The other options do not capture the essence of agile methodology; they imply a more fixed or structured approach to project management or specific strategies that do not embody the core principles of agility.