It aids in setting up the project very quickly and it avoids complicated build files like build.xml. the pom.xml file is at the core of Maven.POM.xml is a collection of dependencies of your Java Project which one can specify to Maven. After this Maven will download all of them from the internet and store it to some repository i.e. local repository, central repository, and remote repository.
It helps to bundle all the jars in your package i.e. in your War file or Ear file because all of them will be stored in the repository. So next time wherever you install this application that repository will be used for any dependencies lookup. In this way, your deployment file will be very light.
