In 2001, a group of software developers developed a set of values and principles they believed should be used in their field to guide their work. This document, known as "The Agile Manifesto," sought to modernize the processes developers followed and make them more straightforward, responsive, and flexible. 

While the "Manifesto" contained four key values and a dozen principles, one has stood out more than the others. The fundamental value of people over processes.