
What It Is
In February 2001, seventeen software developers gathered at a ski resort in Snowbird, Utah, frustrated with the slow, rigid ways that most projects were being managed at the time. Over two days, they wrote a short document called the Agile Manifesto, just 68 words plus twelve guiding principles, that proposed a completely new way of running projects. Instead of planning everything in exhaustive detail up front and then executing a fixed plan over months or years, Agile calls for working in short bursts, welcoming change, and continually improving based on feedback. The group included some of the most influential thinkers in software development, including Ken Schwaber and Jeff Sutherland, who had already developed a specific Agile framework called Scrum. What started as a document for software teams has since spread to industries as varied as healthcare, marketing, education, and construction.
Why It Matters
The Agile Manifesto fundamentally changed how program managers think about their work. It challenged the assumption that the best plan is a perfect one made at the outset and replaced it with the idea that flexibility, collaboration, and rapid learning yield better results. Today, most program managers are expected to understand and apply Agile principles, and entire careers are built around coaching teams to work this way. For young people entering the field, understanding Agile is not optional. It is one of the most important ideas in modern program management, and it all started with seventeen people and a two-day conversation on a snowy mountain.

