5.1What Is the Three Amigos Pattern?

The three amigos pattern brings three perspectives together before work begins on a story. Each person asks different questions, and together they define exactly what "done" means.

Role	Perspective	Key Questions
Product Owner	Business value and user needs	"What problem are we solving? What does success look like?"
Developer	Technical implementation	"How will we build this? What are the edge cases? What could go wrong technically?"
QA Engineer	Testability and risk	"How will we verify this works? What are the failure modes? What about boundary conditions?"