Automation Testing
Automation testing is a process of changing any manual test case into the test scripts by using automation testing tools, and scripting or programming language is called automation.
Automation testing is used to increase the efficiency, effectiveness, and coverage of Software testing.
Automation test engineer uses automation testing tools to automate the manual design test cases without any human interference.
And these testing tools can control the execution of tests, access the test data, and compares the actual result against the expected result.
Manual Testing
Manual testing is testing, where the tester can test the application without any knowledge of any programming language.
In manual testing, the test engineer tests the application like a user to make it bug-free or stable.
Manual test engineers always search for the fault or bugs in the product before the product released in the market, yet delivered software still has defects.
And there is a chance that the final software product still has a defect or does not meet the customer requirement, even the manual test engineer do their best.