Rational Unified Process (RUP) Methodology Extreme Programming (XP) Methodology Rapid Application Development (RAD) Methodology Agile Methodology Scrum Methodology Uses small teams to produce small pieces of software using a series of "sprints," or 30-day intervals, to achieve an appointed goal. Breaks a project into four phases, and developers cannot continue to the next phase until the previous phase is complete. Provides a framework for breaking down the development of software into four "gates." Emphasizes extensive user involvement in the rapid and evolutionary construction of working prototypes of a system, to accelerate the systems development process. Aims for customer satisfaction through early and continuous delivery of useful software components developed by an iterative process using the bare minimum requirements