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Manual Testing: Testing an application with human interaction is called Manual testing.i.e,Applying inputs and observing outputs.
Automation Testing: Automation testing is automating the manual testing process currently in use. The use of software to control the execution of tests,the comparison of actual outcomes, the setting up of test preconditions,and other test control and test reporting functions. Automation enables you to control the functionality of an application programmatically.
Simple Terminology: Manual testing is more web based testing , mobile application testing . Testing the functionality of the applications from user prospect.
Automation is performing exhaustive testing on application to validate and verify application stability in complex and stressed environment. May be this will be useful for only Regression Testing Purpose.
It is not necessary to have knowledge of any testing tool for manual software testing. As the Software testing fundamental always says that “100% Automation is not possible” so the Manual Testing is very important.
Some Simple Presentation of difference between manual testing vs automation testing
Manual testing will be used when the test case only needs to runs once or twice. Automation testing will be used when need to execute the set of test cases tests repeatedly. Manual testing will be very useful while executing test cases first time & may or may not be powerful to catch the regression defects under frequently changing requirements. Automation testing will be very useful to catch regressions in a timely manner when the code is frequently changes. Manual testing is less reliable while executing test cases every time. Using manual software testing it may not be perform test cases execution with same precision. Automation tests will help to perform same operation precisely each time. Simultaneously testing on different machine with different OS platform combination is not possible using manual testing. To execute such task separate testers are required. Automation testing will be carried out simultaneously on different machine with different OS platform combination. To execute the test cases every time tester required same amount of time. Once Automation test suites are ready then less testers are required to execute the test cases. No programming can be done to write sophisticated tests which fetch hidden information. Using Automation testing, Testers can program complicated tests to bring out of sight information. Manual testing is slower than automation. Running tests manually can be very time consuming. Automation runs test cases significantly faster than human resources. Manual testing requires less cost than automating it. Initial cost to automate is more than manual testing but can be used repetitively. It is preferable to execute UI test cases using manual testing. Sometimes can’t automate the UI test cases using automation testing. To execute the Build Verification Testing (BVT) is very mundane and tiresome in Manual testing. Automation testing is very useful for automating the Build Verification Testing (BVT) & it is not mundane and tiresome.