Behavioral Driven Development (BDD) testing uses natural language to describe the “desired behavior” of the system that can be understood by the developer, tester and the customer. It is a synthesis and refinement of practices stemming from TDD and ATDD. It describes behaviors in a single notation that is directly accessible to domain experts, testers and developers for improving communication. It focuses on implementing only those behaviors, which contribute most directly to the business outcomes for optimizing the scenarios.