Definition
Behavior-Driven Development (BDD) is an extension of TDD that focuses on the behavior of the application, written in a language understandable by all stakeholders. It uses natural language constructs (such as English sentences) to describe the desired behavior.
Process
The BDD process involves writing scenarios that describe the behavior of an application in a Given-When-Then format, writing the code to implement these scenarios, and then ensuring all scenarios pass.
Benefits
Benefits of BDD include improved communication between developers and non-technical stakeholders, ensuring that the application meets business requirements, and reducing misunderstandings.