#technical **What?** Behavior Driven Development is a software development approach which built from Test-Driven Development and Acceptance Test-Driven Development. **Why?** In this approach there is a focus on defining the behavior of the application / acceptance criteria using examples and scenarios in a specific simple domain language. Then it can leads to auto-generating codes and their test functions to implement. **How?** 1. **User-Centric Focus**: BDD starts with defining the desired behavior of a system from the user's perspective. This is often expressed in terms of user stories and acceptance criteria. 2. **Readable Specifications**: BDD uses a language that is easily understood by all stakeholders, typically formulated in a given-when-then format (Gherkin syntax is a common example). For instance: - **Given** some initial context (the beginning state), - **When** an event occurs (specific action), - **Then** ensure some outcomes (expected result). 3. **Living Documentation**: The specifications written in BDD serve as both documentation and a foundation for automated tests. This ensures that documentation stays up-to-date with the software development and is aligned with the actual behavior of the application. 4. **Automation of Acceptance Criteria**: The scenarios described in the BDD specifications are often used as a basis for automated acceptance tests. Automation can be done with the tools like Cucumber, SpecFlow, or Behave. 6. **Collaboration and Communication**: One of the key goals of BDD is to improve communication between technical and non-technical team members. By using language that is understandable to all, it ensures everyone has a shared understanding of the feature's intended behavior. 7. **Continuous Feedback**: BDD encourages continuous feedback through its iterative development process, where behaviors are specified, implemented, and tested in short cycles. #BDD #TDD #ATDD #code_generator #gherkin #agile #development