Bug Testing is the process of identifying and fixing errors or defects in software applications. It ensures that the software functions as intended and meets user requirements. Testers systematically check different parts of the application to find issues that could affect performance or user experience. During Bug Testing, various techniques are used, such as manual testing and automated testing. Manual testing involves human testers executing test cases, while automated testing uses scripts and tools to perform tests. Both methods help ensure that the final product is reliable, efficient, and free of critical bugs before it is released to users.