*What is software testing? *
software testing is techniques that use to test the quality, reliability, and functionality of the software.Software testing involves running the application under some conditions to detect errors and verify that it behaves as expected. software testers will interact with the software manually, execute test scripts, or use automated testing tools.
Software testing is the process of evaluating and verifying that a software product or application does what it's supposed to do.
Software testing is important because if there are any bugs they can be identified early and can be fixed before the delivery of the software,To uncovers the defects in the software, and fixing them improves the quality of the software.

what is relevant of software testing?