Advantage and Disadvantage of Automation Software Testing
Automation Testing is technique of testing in which we enable a software to perform all manual test cases without human intervention.
Automation testing is a testing where the tester writes scripts by own and uses suitable software to test the software. In other word, Automation testing uses automation tools to write and execute test cases, no manual participation is required while executing an automated test suite.
Basically, automation testing is an automation process of a manual process.
We have many advantages and benefits for project and organization while using Automation Tools for Testing. And also have some pitfalls or disadvantage of Automation testing which we need to be aware of.
In this article, I potted advantages and disadvantage of Automation Testing
Advantage of Automation Testing
Regression and Retesting:
Repetitive work is very uninteresting if it is done manually. People tend to make mistakes when doing the same task over and over.
Regression testing is one of the best example of repetitive wok in which tester have to test software again and again with same test data. Regression tests are generally extremely tedious and time consuming.
Test automation is extensively used for regression testing, which seeks out new bugs in a program and separates them. automated tests come in and make life easy for a software testing professional.
Greater consistency and repeatability:
Test automation provides a consistent platform for your testing needs. Automation will exactly reproduce what it did before, so each time it is run the result is consistent. This original consistency provides a much-needed reliability for your testing.
Test automation is a way to make the testing process enormously efficient. Testing team can be intentionally organized to tackle the delicate, case specific tests. Automation testing can handle the repetitive, time consuming tests that every software has to go through. Automation is great way to not only save up on time, money and resources, but also to generate a high ROI.
Frees up the time of the testers
Regression tests which need to be run on a regular basis, when automated, they free up the time of the testers, so they can focus more on interesting scenarios and exploratory testing.
Ease of access to information about tests or testing
It’s very easy for human mind to understand information presented in visually. For example, a chart or graph is a better way to show data than a long list of numbers. Automation tools give these features directly for the information they process. Like include statistics and graphs about test progress (test execution or test management tool), event rates (incident management or test management tool) and performance (performance testing tool).
Up-gradation and Re-usability
Re-usability is one of the best aspect of Automation Testing. And also, the testing software directory can be upgraded and kept up-to-date after every new test and every new bug discovery. It’s true test automation is expensive, but automation software is a long lasting, reusable product which can justify its cost.
Unique Programmability and Shelf Life
Test automation software construct exact testing specifications and also it serves as a prime module for future testing scenarios. Automated software developed by testing companies are modeled such that they have enough flexibility to handle a unique invention, while submitting with the latest security and testing protocols. This makes test automation a powerful tool for time-saving, resourceful and top notch results.
User Environment Simulation
Simulation of a typical UE (user environment) through categorically organized mouse clicks and keystrokes is another one of unique feature of Automation Testing. GUI testing is time consuming and redundant actions because the tester has to organize the same procedures in simulated user driven environments and check for issues in the receptiveness of the GUI. Automation Testing will make this process incredibly easy.
Quick feedback is also another great advantage of Automation testing on the health of the application as soon as the application is updated. This is very useful for the development team, they can fix issues before moving on to code other stuff, so a quick feedback is important.
Note: – Quick feedback can only be accomplished by unit tests and API tests where the UI is not achieved. If we check functionality from UI or at system level, it will take a long time for completion before we can get the results of the tests which is one of the disadvantages of automated testing.
Disadvantage of Automation Testing
There are many advantages of using automation tools to support testing activities, but there are also many disadvantages of using that tools when support for testing is introduced and used.
ROI (Return on Investment) comes very late.
At the time of automation testing, tester have write scripts of testing this will take some time to write that test script. For that company have to invest first for the resources like tester, automation tools etc. these all take huge time for getting the result. But after making one time test script ROI comes fast.
More Skilled Testers are Required.
For automation testing tester should have knowledge of automation and coding for this higher education is required as compare to manual testing.
More Maintenance is involved
After the updates in software tester have to maintained their scripts according to that updates. Maintenance in automation testing is performed as day to day aspect according to software.
Automation is not testing
Unfortunately, many people mistake “Test Automation” with Testing and once they have the tools to automate the testing, they want to “automate all the tests” and get rid of so called manual testers or QAs.
The truth is that Testing is an exploration exercise; you need domain knowledge, be inquisitive with a mind to focus on learning the behavior of the application and apply proper test techniques to be able to spot anomalies in the software.
Testing is not just executing a set of pre-defined test steps and comparing the actual results with expected results; that can be the job of automated checks. But to properly test an application, a human intelligence is always required.
Unrealistic expectations from the tool
Unrealistic expectations may be one of the greatest risks to success with tools. The tools are just software and we all know that there are many problems associated with any kind of software. It is very important to have clear and realistic objectives for what the tool can do.