In software testing how we can execute the test cases manually as well as automation tool. Following points clear the basic difference between manual testing vs automation testing.
| S. No | Manual Testing | Automation Testing |
| 1 | All Software Testing Life Cycle (STLC) phases can be tested and verified with the help of developers or programmers (human efforts) | All Software Testing Life Cycle (STLC) phases can be tested and verified with the help of various automation tools. |
| 2 | It is done by manually | It is done by automatically |
| 3 | It increases human efforts | It reduces human efforts |
| 4 | Manual testing is slower than automation testing | Automation testing faster than manual testing |
| 5 | As a manually we find more bugs than automation testing | As a automation we find less bugs than manual testing |
| 6 | It gives low accuracy | It gives high accuracy |
| 7 | It takes more time than automation testing | It takes less time than manual testing |
| 8 | It provides low quality | It provides high quality |
| 9 | It is not expensive | It is expensive |
| 10 | Executes test cases whenever it requires once or twice | Executes test cases frequently or repeatedly |
| 11 | Need not require programming knowledge | Tester require programming or scripting knowledge |
| 12 | It is helpful in User Interface (UI) testing | Some time it is not helpful in User Interface (UI) testing |
| 13 | Manual testing not always useful in regression testing (may find out errors after modification) | Automation testing always used to test regression testing even after modification |
| 14 | It is less reliable | It is more reliable |
| 15 | It is testing without interaction of testing tool or automation tool | It is testing with interaction of testing tool or automation tool |
| 16 | Example -: Review, Inspection | Example -: QTP, Selenium |