In the fast-paced world of software development, choosing the right methodology for building reliable, maintainable applications is critical. Among the most prominent and widely debated approaches are TDD and BDD. These methodologies—Test-Driven Development (TDD) and Behavior-Driven Development (BDD)—have transformed how teams write, structure, and validate code. Both practices emphasize testing early and often, yet they differ in philosophy, communication style, and implementation.

In the fast-paced world of software development, choosing the right methodology for building reliable, maintainable applications is critical. Among the most prominent and widely debated approaches are TDD and BDD. These methodologies—Test-Driven Development (TDD) and Behavior-Driven Development (BDD)—have transformed how teams write, structure, and validate code. Both practices emphasize testing early and often, yet they differ in philosophy, communication style, and implementation.