The[appdir]/config/script/AppConfig.xml file is the central configuration file of the Deployment Template. It defines the hosts and Endeca components that make up the Endeca implementation known to the EAC. It also defines the scripts that orchestrate updates by running the defined components.
If you do not require all components in your staging or development environments, or need more than one of each component, you can modify the AppConfig.xml file to add or remove them.