How can testing be defined in software development?

Testing in software development is defined as validating and verifying that the software meets specified requirements. This process is critical because it ensures the functionality of the software aligns with the needs of the user and adheres to the defined specifications. By validating the software, developers can confirm it behaves as expected under various conditions, identifying and addressing any defects before the product is released. Verifying the software involves checking that it fulfills all the requirements set forth during the planning and design phases, which is essential for ensuring quality and reliability in the final product. In summary, effective testing provides the assurance that the software not only works but also meets the standards and requirements it was designed to fulfill.