Behavior Driven Development (BDD) is a software development approach that emphasizes collaboration between developers, testers, and non-technical stakeholders. It focuses on defining the behavior of an application through examples in a shared language, making it easier for everyone involved to understand the requirements and expectations. In BDD, scenarios are written in a structured format, often using the Given-When-Then framework. This helps teams clarify the desired outcomes and ensures that the software meets user needs. By prioritizing communication and shared understanding, BDD aims to reduce misunderstandings and improve the overall quality of the software being developed.