A remote deployer is used to deploy to a container that can be on the same machine or on some remote machine. Deploying remotely requires passing information such as username and password of the user to use for deploying, etc. These information are passed using a Runtime Configuration.
Users of the Java API can take a look at the
RemoteDeploymentTest class as an example.
Users of the ANT tasks can take a look at the
Users of the Maven2/Maven3 plugin can use the Maven2 Archetype showing remote deployer support. Please read: Webapp Creation and Remote Deployment Archetype.