Add topic "BDD"

Author: shaedrich

topics/bdd/index.md

@@ -0,0 +1,11 @@
+---
+aliases: behavior-driven-development
+created_by: Kent Beck, D.D. McCracken
+display_name: Behavior-driven development
+released: 1957
+short_description: Behavior-driven development is a test-first, agile testing practice with business-facing scenarios.
+topic: bdd
+wikipedia_url: https://en.wikipedia.org/wiki/Behavior-driven_development
+related: atdd, tdd, testing, continuous-testing, specification-by-example, cucumber, behat, gherkin
+---
+**Behavior-driven development** (**BDD**) is a test-first, agile testing practice. Without focusing on internal implementation, BDD tests are business-facing scenarios that attempt to describe the behavior of a story, feature, or capability from a user’s perspective. Behaviour-driven development is a synthesis and refinement of practices stemming from test-driven development (TDD) and acceptance-test-driven development (ATDD).