December 3, 2023

Why Automation Testing Is Better Than Manual

4 min read

Manual testing requires a great deal of time and resources before a product is market-ready. Multiple recurring corrective quality tests delay the launch of the final product.

Automation is a much faster and more reliable way to test applications. It reduces testing time and helps to increase the test coverage.


Manual software testing involves a significant amount of time and resources. It also increases the risk of human error, which can lead to unreliable results. Automated testing, on the other hand, is more cost-effective and reliable than manual testing. In addition, automated software tests can be used multiple times, saving time and resources.

Automation testing is also much faster than manual testing. In fact, a manual test suite that requires 31 man days to execute can be automated in just 10 man days. This can significantly reduce product development time and speed up the process.

Another advantage of automation testing is that it can be performed round-the-clock. This can help ensure that all tests are executed and that bugs are caught before they get to production. It can also reduce the number of retests required when code changes are made. It also provides more accurate and detailed test reports. Moreover, automated testing allows for batch execution, which is not possible with manual testing. It also provides greater transparency, as test reports are easily accessible to all stakeholders.


The scalability of automation testing versus manual is an important factor to consider. While it may require an initial investment, automated tests can reduce testing time and labor costs and result in a higher return on investment. Automated tests also eliminate human errors, providing consistent and accurate testing results. This allows teams to create and execute more test cases, resulting in broader test coverage and increased product quality.

However, it’s important to note that while automated testing is scalable, it doesn’t replace human judgment. For example, exploratory testing, where testers explore the software to find bugs, isn’t automatable. Likewise, User Acceptance Testing (UAT), which involves end-users testing the software in their own environment, isn’t feasible to fully automate.

Additionally, automated tests can run on any platform and device, making them more scalable than manual tests. Moreover, they can be updated easily when the code changes, which saves a lot of time and effort for testers. This scalability is especially useful when you’re running regression testing. Keeping your regression tests updated can help you catch any new issues early, reducing your risk of customer frustration.


Unlike manual testing, automated software tests require minimal human resources to execute. This makes them much more cost-effective than manual testing in the long run. Additionally, automation testing is more accurate and less error prone than manual software testing. It can also reduce the number of human errors in QA processes and provide a more rigorous QA standard.

Automated software testing is particularly useful when there are repetitive and time-consuming test scenarios, such as regression tests. These automated software tests can be executed on a continuous basis, saving valuable QA staff time. Additionally, automated software testing can be easily re-run when the code base is updated.

However, there are still some situations when manual software testing is the best option. For example, when a short-term project is involved, it may be cheaper to test manually rather than invest in automation. Similarly, humans are better than computers at evaluating the usability of products and can provide more genuine feedback. Moreover, human testers are able to pick up visual issues much faster than automated software tests.


Manual testing can be expensive and time consuming. Automation testing can save time and money by automating repetitive tests. It is also more accurate than manual testing and provides a high return on investment.

The reusability of automated software tests can reduce testing times from days to hours, which translates into cost savings. This enables businesses to complete the test cycle faster and deliver quality products to market more quickly.

However, it is important to remember that even the best human tester can make mistakes when performing repetitive manual testing tasks. Automated testing eliminates the potential for these errors, which helps to improve quality and increase test coverage.

Moreover, automation testing can be used to test cross-browser compatibility and UI/UX. It can also help to identify usability and visual issues that human testers often miss. It can also pick up visual bugs much faster than manual testing. However, automation testing is not suitable for all types of tests, such as regression and smoke tests. These tests are typically more complex, so it is difficult to automate them.


In many cases, automated testing is superior to manual testing. However, manual testing still has its place in software development. This type of testing is useful when there are a lot of changes or new features that need to be tested. It is also important for testing the accuracy of data. For example, a human tester could find that the Login button on a website is not working correctly. This kind of error can be difficult for automation tools to catch.

In addition, manual testing is a great option for exploring the software without specific test scenarios in mind. This allows testers to use their sensibilities and give custom feedback. It is especially useful when evaluating user experience. For example, a manual tester can evaluate whether a web application or software product looks good and feels right to a user.

Automated tests are faster and less error-prone than manual testing, which can result in a higher quality product. Moreover, they can be used in multiple environments and platforms with one click of a button. This is a huge advantage over manual testing, which is time-consuming and repetitive.

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