Automation Testing is the process of using software tools and scripts to execute test cases, compare actual outcomes with expected results, and report defects automatically. It reduces human effort, improves accuracy, and speeds up the testing process.

Automation uses different testing frameworks like key-word driven, data-driven, linear-scripting, module testing framework, etc. to increase test coverage and greater accuracy. It also helps in saving time, effort, and cost, thereby generating a high ROI (Return On Investment).

If you want to test all the major features of your application just before release, but you are short of time for complete testing, opt for Automation Testing.