The Force.com Migration Tool provides a scripted way to deploy or retrieve metadata to and from a Salesforce sandbox. It is based on Ant/Java.
The Force.com Migration Tool helps us to copy Salesforce components from one organization easily. In normal practice, we have different environments such as development, test, UAT, and production. As developers develop components in a Developer sandbox, they need to move those changes to test or UAT for testers to test and give the green light for a feature/change to production. However, this is not a one-time process. Often, features or changes do not work properly or they introduce some bugs, testers raise an issue/bug, and developers start working on them. Once the bug/issue is fixed in the development environment, we need deployment of the change to test/UAT again. So, this is a repetitive process...