Automation Testing is important, because 1. Script Execution is very fast & efficient 2. Since the execution is happening on the remote machine, Automation Tester can continue to work in local machine 3. ROI using Automation Testing is good as less number manual resources are required, 4.You can trigger a batch execution at the end of your day, next day when you are into office, you will have results ready, analyze the results and take suitable actions. 5. Same scripts can be used for execution and certify the builds in various environments. 6. Automation Testing helps in big time during Regression and End to End Cycle. I have listed few points which illustrate the importance of Automation Testing.