Agile Methodology

Throughout the 1990s, a growing number of software developers found that the prevailing heavyweight methodologies, collectively known as waterfall, were failing them. Waterfall development required exhaustive documentation and rigid planning before any code was written, a process modeled on Henry Ford's 1913 assembly line. By the time software reached users, requirements had often changed, features were obsolete, and teams had spent months building things nobody wanted. Practitioners began developing lighter alternatives independently, including Scrum in 1995, Extreme Programming and Crystal Clear in 1996, and Feature-Driven Development in 1997.

The meeting at Snowbird was preceded by a gathering organized by Kent Beck at the Rogue River Lodge in Oregon in spring 2000, where proponents of various lightweight approaches recognized their shared frustrations. The seventeen participants who convened in Utah in February 2001 included Kent Beck, Ward Cunningham, Martin Fowler, Ken Schwaber, and Jeff Sutherland, among others. Despite being, in Jim Highsmith's words, competitive with each other in thought, they agreed on four value statements and twelve principles that prioritized individuals and interactions over processes and tools, working software over comprehensive documentation, customer collaboration over contract negotiation, and responding to change over following a plan.

The group named themselves the Agile Alliance and published the manifesto online, where practitioners could sign it. Adoption grew organically through the 2000s, driven primarily by development teams rather than management directives. By the 2010s, agile practices had crossed the fifty-percent adoption mark in software development and begun spreading into project management, marketing, human resources, and education. The Agile Manifesto's lasting influence lies not in any specific process it prescribed but in the philosophical shift it articulated, away from command-and-control planning toward iterative collaboration.