What is referred to as repeated testing done during the development of a program?

The concept of repeated testing during the development of a program is best described as iterative testing. This approach emphasizes the continuous process of testing, refining, and improving the software throughout its development cycle. As changes and enhancements are made, iterative testing allows for ongoing verification that the software remains functional and meets the specified requirements.

Throughout the iterative testing process, any issues identified can be addressed immediately, ensuring that the software evolves correctly. This method recognizes that the development of software is not linear but rather involves multiple cycles of development, testing, and feedback.

The other types of testing mentioned serve different specific purposes. Beta testing occurs after the software has been developed and is used to identify issues by allowing external users to use the software. Unit testing focuses on testing individual components or modules of the software in isolation to ensure they work as intended. Regression testing is conducted to confirm that previously developed and tested software still performs after any changes have been made. Each of these methods plays a unique role in the software development lifecycle, but they do not inherently reflect the concept of repeated testing throughout program development as iterative testing does.