Automation is hardly a new idea, but the technology is still in its formative stages.Even the most full-featured tools depend on an IT professional or team to develop and maintain discrete automation elements, such as scripts, templates, policies and workflows.automation is the use of instructions to create a repeated process that replaces an IT professional's manual work in data centers and cloud deployments. Software tools, frameworks and appliances conduct the tasks with minimum administrator intervention. The scope of automation ranges from single actions to discrete sequences and, ultimately, to an autonomous IT deployment that takes actions based on user behavior and other event triggers.

Automation Testing means using an automation tool to execute your test case suite.The automation software can also enter test data into the System Under Test, compare expected and actual results and generate detailed test reports. Test Automation demands considerable investments of money and resources.Successive development cycles will require execution of same test suite repeatedly. Using a test automation tool, it's possible to record this test suite and re-play it as required. Once the test suite is automated, no human intervention is required. This improved ROI of Test Automation. The goal of Automation is to reduce the number of test cases to be run manually and not to eliminate Manual Testing altogether.