Manual Testing vs. Automation Testing

Professionalqa Manual vs Automation image

The featured image of the article itself had outlined the basic difference between two different approaches of testing the software product; manual testing and automation testing.

However, we will be going in detail to impart and conscience our users with some of the notable point of differences between manual and automation, but before that let's have a small brief of these testing approaches.

Manual testing:

As the name suggests, manual testing is the testing a software product for bugs and errors without the usage of any automation tool and involves tester's efforts to identify and detect defects in the system.

Learn more about the manual testing in our article manual testing.

Automation Testing:

Automation testing encompasses the usage of automated or customised test tools to run multiple test cases or a test suite to produce accurate & precise results, and to catch bugs in a short time.

Read our article Test Automation to gain more understanding of automation testing.

Differences between Manual Testing and Automation Testing:

Sl.No. Manual testing Automation testing
1. It requires the use of human skills to create and run test cases. Automation involves the use of automated test tools to run test cases or a suit of test cases.
2. Manual testing is a cheaper option for companies working on a tight budget and gets the task of testing done by their own software developers. Working with automated test tools is more expensive compared to manually designing and running test cases.
3. Manual testing is an error prone approach towards testing. Due to fatigue, there is likelihood of missing out on some bugs on the part of professional testers. As the fatigue factor caused by repeatability of testing is not involved, the automated approach doesn't leave any errors at the end of a test run
4. Manual testing is a lot more flexible in that it allows for modification of test cases. Testing approach employing automation doesn't allow for modification in test cases and is hence rigid.
5. Re-usability of test cases is not possible with manual testing. Automation testing has the advantage of re using the same test cases again and again.
6. Manual testing suffers the disadvantage of being slow. Automation testing has an edge over manual testing when it comes to running test cases over a large number of iterations quickly.
7. Lacks versatility when compared with automation testing. Automation testing is a lot more versatile as it can be performed on different machines, platforms and operating systems.
8. Manual testing is not suitable for large scale projects. Automation testing is suitable for large scale projects.
9. Manual testing can work well for small scale projects. Automation testing works well with both small & large sized projects.
10. For judging the characteristics requiring a human touch such as the right colour contrast and font, manual testing holds edge over automation testing. Testing for User choice based features cannot be done effectively with automation testing.
11. Manual testing doesn't result in test cases with a wide coverage. Automation testing increases test coverage.