BDD

Behavior-Driven Development

TDD variant expressing tests as readable Given/When/Then behavior.

When you'd see it: Teams trying to align developers, QA, and business on what software should do. BDD frames tests as readable scenarios.

Why it matters: BDD expresses behavior as plain-language Given/When/Then scenarios that non-developers can read and agree on. The value is shared understanding of requirements, not just test coverage.