How does one define an Agile process. I've heard that mathematics should be able to describe most anything; so here is my attempt at describing an Agile process. An integral equation. The integral from sprint 1 to sprint N of teamwork multiplied by the sum of test-driven development to the power of continuous integration plus pair programming plus the summation of refactoring. See Also: S.O.L.I.D. design principle posters . Which Agile Process Should You Choose? a comparative study of processes A List of Agility Tests During Scrum boot camps at SolutionsIQ back in the day we ran an exercise to map the engineering practices to the Agile manifesto's 12 principles . The first several groups to participate in the exercise arrived at a set of practices that felt to all as if they had covered most of the 12 principles, but not all sufficiently. That's what instigated the practice of teamwork, not that it had been missing on our teams, it j