This class represents a user/person and reflects a collection in the DAV store which acts
as an anchor for all the personal folders and personal repository information.
The DAVTransportInterface provides a mechanism for publishing
a result package to a WebDAV server, and for retrieving a result package
from a WebDAV server.
Interface describing a discovery service in terms of its
capability to act as a mechanism to find services based
upon a desired service template and an administration
interface that's used to add/remove services to the registry
and to add/remove discovery delegates.