Test Case
A test case is a detailed document that outlines a set of conditions and steps to verify whether a software application or system performs as expected. It includes specific inputs, execution conditions, and expected results to assess whether the software meets its requirements. Each test case is designed to validate a particular aspect of the application, ensuring that all functions operate correctly and identifying any potential defects. Test cases are crucial in software testing for systematically covering all functionalities and edge cases, thereby ensuring thorough quality assurance. They help in maintaining consistency and repeatability during the testing process, contributing to a reliable software product.