Suppose any software has come up with new releases and bug fixes, then how will you ensure about that the new released software with bug fixes has not introduced any new bug in previous working functionality? So it’s better to test the software with old functionalities too. It is difficult to test manually all functionalities of the software every time with the addition of some bug fixes or new functionalities. So, it is better to test software every time by Automation testing technique using Automation Tool efficiently and effectively. It is effective in terms of cost, resources, Time etc.
Environment issues aside, automated checks that need to be run by hand create a drain on the team. Most teams we work with tend to want to just get started by running automated checks by hand. I suggest a different approach: Start with one check that runs end-to-end, through the continuous integration server, running on every build. Add additional scripts to that slowly, carefully, and with intention. Instead of trying to automate 100%, recognize that tooling creates drag and maintenance cost. Strive instead to automate the most powerful examples.

Automated testing or test automation is a method in software testing that makes use of special software tools to control the execution of tests and then compares actual test results with predicted or expected results. All of this is done automatically with little or no intervention from the test engineer. Automation is used to to add additional testing that may be too difficult to perform manually.

TestPlant eggPlant is a niche tool that is designed to model the user’s POV and activity rather than simply scripting their actions. Testers can interact with the testing product as the end users would, making it easier for testers who may not have a development or programming background. TestPlant eggPlant can be used to create test cases and scenarios without any programming and can be integrated into lab management and CI solutions.