There are a few significant contrasts between manual testing and Automation testing. In manual testing, a human plays out the tests bit by bit, without test scripts. In Automated testing, tests are executed consequently by means of test automation structures, alongside different devices and programming.
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Table Of Contents::
Manual Testing vs Automation Testing
Automated Testing Pros and Cons
What is Manual Testing?
Manual testing is testing of the software where tests are executed manually by a QA Analyst. It is performed to discover bugs in software under development.
In Manual testing, the tester checks all the essential features of the given application or software. In this process, the software testers execute the test cases and generate the test reports without the help of any automation software testing tools.
It is a classical method for all testing types and helps find bugs in software systems. It is generally conducted by an experienced tester to accomplish the software testing process.
What is Automation Testing?
In Automated Software Testing, testers write code/test scripts to automate test execution. Testers use appropriate automation tools to develop the test scripts and validate the software. The goal is to complete test execution in less amount of time.
Automated testing entirely relies on the pre-scripted test which runs automatically to compare actual results with the expected results. This helps the tester to determine whether or not an application performs as expected.
Automated testing allows you to execute repetitive tasks and regression tests without the intervention of a manual tester. Even though all processes are performed automatically, automation requires some manual effort to create initial testing scripts.
Manual Testing vs Automation Testing:
There are some differences between Manual Testing and Automation Testing are:
> Automation Testing:
- Automation Testing uses automation tools to execute test cases.
- Automated testing is significantly faster than a manual approach.
- Automation does not allow random testing.
- The initial investment in automated testing is higher. Though the ROI is better in the long run.
- Automated testing is a reliable method, as it is performed by tools and scripts. There is no testing for Fatigue.
- For even a trivial change in the UI of the AUT, Automated Test Scripts need to be modified to work as expected.
- Investment is required for testing tools as well as automation engineers.
- Not cost-effective for low-volume regression.
- With automation testing, all stakeholders can log in to the automation system and check test execution results.
- Automated testing does not involve human consideration. So it can never give assurance of user-friendliness and positive customer experience.
- You can Batch multiple Test Scripts for nightly execution.
- Programming knowledge is a must in automation testing.
- Automation test requires a less complex test execution setup.
- Automated Tests help in Build Verification Testing and are an integral part of the DevOps Cycle.
- Automated Testing is suited for Regression Testing, Performance Testing, Load Testing, or highly repeatable functional test cases.
> Manual Testing:
- In manual testing, test cases are executed by a human tester and software.
- Manual testing is time-consuming and takes up human resources.
- Exploratory testing is possible in Manual Testing.
- The initial investment in Manual testing is comparatively lower. ROI is lower compared to Automation testing in the long run.
- Manual testing is not as accurate because of the possibility of human errors.
- Small changes like changes in id, class, etc. of a button wouldn’t thwart the execution of a manual tester.
- Investment is needed for human resources.
- Not cost-effective for high-volume regression.
- Performance Testing is not feasible manually
- Executing the Build Verification Testing (BVT) is very difficult and time-consuming in manual testing.
- Manual Testing does not use frameworks but may use guidelines, checklists, and stringent processes to draft certain test cases.
- Manual Unit Tests do not drive design into the coding process.
- Manual Unit Tests do not drive design into the coding process.
- Manual Testing is suitable for Exploratory, Usability, and Adhoc Testing. It should also be used where the AUT changes frequently.
Manual Testing Pros and Cons:
> Pros of Manual Testing:
- Get fast and accurate visual feedback
- It is less expensive as you don’t need to spend your budget on the automation tools and process
- Human judgment and intuition always benefit the manual element
- While testing a small change, an automation test would require coding which could be time-consuming. While you could test manually on the fly.
> Cons of Manual Testing:
- Less reliable testing method because it’s conducted by a human. Therefore, it is always prone to mistakes & errors.
- The manual testing process can’t be recorded, so it is not possible to reuse the manual test.
- In this testing method, certain tasks are difficult to perform manually which may require additional time in the software testing phase.
Automated Testing Pros and Cons:
> Pros of automated testing:
- Automated testing helps you to find more bugs compare to a human tester
- As most of the part of the testing process is automated, you can have a speedy and efficient process
- The automation process can be recorded. This allows you to reuse and execute the same kind of testing operations
- Automated testing is conducted using software tools, so it works without tiring and fatigue unlike humans in manual testing
- It can easily increase productivity because it provides fast & accurate testing result
- Automated testing supports various applications
- Testing coverage can be increased because of automation testing tools never forget to check even the smallest unit
> Cons of Automated Testing:
- Without the human element, it’s difficult to get insight into visual aspects of your UI like colors, font, sizes, contrast, or button sizes.
- The tools to run automation testing can be expensive, which may increase the cost of the testing project.
- The automation testing tool is not yet foolproof. Every automation tool has its limitations which reduces the scope of automation.
- Debugging the test script is another major issue in automated testing. Test maintenance is costly.
Conclusion:
In manual testing, there is a chance of human errors because here testing is done by humans. In automation testing, there is no chance of human errors because here testing is done by tools. In manual testing, there is a possibility of Exploratory testing. In automation testing, there is no permission for random testing
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