Agile software development is centered on the ability to adapt and respond to change, emphasizing collaboration between business and development teams to produce quality software that meets customer expectations. It encompasses methodologies like Scrum, Kanban, and Scrumban, each offering distinct approaches to task management and work progress tracking. Scrum relies on time-boxed sprints for structured development, while Kanban promotes a continuous workflow without pre-defined deadlines, allowing for flexibility in task completion. Scrumban combines elements of both, utilizing Scrum's iterative sprints with Kanban's continuous flow. Choosing the right approach depends on a team's specific needs and management style, with the flexibility to adapt the method to improve productivity and software quality. Agile's adaptability allows teams to experiment and select or even customize task management processes to best suit their projects, emphasizing ongoing improvement and responsiveness to change.