'Behavior-Driven Development (BDD)' is a refinement of Agile methodologies, evolving from test-driven development (TDD). BDD blends TDD's technical principles with domain-driven design and object-oriented analysis, fostering collaboration between software development and management teams.

BDD focuses on the managerial aspects of software development, advocating for business and technical collaboration. It typically involves using specialized tools like Cucumber, JBehave, SpecFlow, and FitNesse to support the development process.