Manual Testing and its Limitations-Drawbacks - Testing Tools

In many organizations, software testing is carried out manually. After the product reaches a mature stage, the test team generates various test cases and manually tests each and every feature. If a defect is found, the software is modified. Again, using the test cases, the software is tested. Such a manual testing is not advisable for the following reasons:

  • Manual testing is very time consuming. The same set of operations need to be done repeatedly, and hence the test engineers are likely to get bored when the testing has to be done repeatedly.
  • Regression testing has to be done to ensure that changes in one portion of the software have no ill effects on other portions of the software. The entire testing process needs to be repeated whenever a change is made to any portion of the software.
  • To do performance testing, many resources are required, both computers and people. For example, to test a Client/Server application, the client software has to be run on different machines and one person has to test each client application to test the performance of the software when multiple users use the same software simultaneously. On the other hand, automated tools facilitate running the software from a single client machine, resulting in savings in terms of infrastructure and manpower.
  • Manual testing is error-prone because test engineers become bored when testing has to be done repeatedly. For instance, to test a web site, each and every link has to be checked. In manual testing, the test engineer is likely to miss some links.
  • Even to manage the testing process is complicated as the testing has to be planned, bugs have to be tracked and reliability analysis has to be performed. Automated test tools help in managing the testing process effectively.

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