Description: Configuration in the context of continuous integration and Test Driven Development (TDD) refers to the process of preparing the environment and necessary dependencies before running tests. This process is crucial to ensure that the software runs in a controlled and predictable environment, allowing developers to identify and fix errors efficiently. In continuous integration systems, configuration involves defining a configuration file that specifies language versions, project dependencies, and commands to be executed during the integration process. On the other hand, in TDD, configuration focuses on establishing a testing environment that allows developers to write tests before implementing code, ensuring that each new feature meets the established requirements. Proper environment configuration not only improves software quality but also speeds up the development cycle by reducing the time spent troubleshooting environment-related issues. In summary, configuration is a fundamental step that lays the groundwork for agile and effective development, enabling development teams to work more collaboratively and efficiently.