<p data-start="192" data-end="416">TDD (Test-Driven Development) and BDD (Behavior-Driven Development) are often compared as if they&rsquo;re competing approaches, but the real difference lies in how they influence team workflow and communication. TDD focuses on developer-centric tests. By writing unit tests before code, it ensures that every function works as intended and reduces bugs early. It&rsquo;s highly technical and helps maintain a clean, reliable codebase. BDD, on the other hand, is collaboration-centric. Using human-readable scenarios, it bridges the gap between developers, QA, and business stakeholders. BDD encourages teams to define expected behavior clearly, ensuring that software meets user needs and business goals. The unique insight is that TDD vs BDD can complement each other. TDD strengthens internal code quality, while BDD ensures that the software behaves correctly in real-world scenarios. Together, they create a workflow that promotes both technical rigor and business alignment, which is often overlooked in discussions that treat them as alternatives. For teams adopting modern testing frameworks, understanding how TDD and BDD intersect can improve code quality, reduce miscommunication, and speed up delivery without compromising software reliability.