Before you can use packages within a context, you must first enable packages for that context. When you enables packages for a given context, the system loads a site-wide package template XML file. The package template file contains package specific roles that are applied to the container team, the default domain structure for packages, and package-related policies.

The default domain structure will create a Package domain specific to the current context. All packages created within the context, as well as all of the objects created within the packages (collections, folders, documents, links, and deliveries) will use this package domain by default. Out of the box, the package domain is Private. This means that it won't inherit any policies from the container's default domain.