Scrum
Scrum is a framework within which people can address complex adaptive problems, while productively and creatively delivering products of the highest possible value. It is used for managing software projects and product or application development. Its focus is on an adaptive product development strategy where a cross-functional team works as a unit to reach a common goal within 2-4 weeks (Sprint). It consists of a collection of values, artifacts, roles, ceremonies, rules and best practices.