Agile Methodology is a software development philosophy rooted in the 2001 Agile Manifesto, emphasizing iterative delivery, customer collaboration, and adaptive planning over rigid processes. Born from the need to respond rapidly to changing requirements, Agile shifted the industry from waterfall's sequential approach to incremental value delivery through short cycles called sprints or iterations. The key mental model: working software delivered frequently beats comprehensive documentation and distant deadlines—teams inspect, adapt, and continuously improve both product and process. In 2026, Agile has expanded far beyond software into business agility, with scaling frameworks, AI-integrated delivery, and outcome-focused metrics reshaping how organizations adopt it.
What This Cheat Sheet Covers
This topic spans 21 focused tables and 163 indexed concepts. Below is a complete table-by-table outline of this topic, spanning foundational concepts through advanced details.
Table 1: Core Values
| Value | Example | Description |
|---|---|---|
Team members collaborate face-to-face daily vs. relying solely on ticketing systems | Prioritizes people and communication as the primary drivers of success, not rigid workflows or tooling | |
Delivering a functional feature every two weeks vs. writing detailed specs for months | Emphasizes tangible, tested software as the primary measure of progress |