Agile is a term used to describe approaches to software development emphasizing incremental delivery, team collaboration, continual planning, and continual learning. The term “Agile” was coined in 2001 in the Agile Manifesto. The manifesto set out to establish principles to guide a better approach to software development. The manifesto set out to establish principles to guide a better approach to software development. At its core, the manifesto declares 4 value statements representing the foundation of the agile movement.