The Federated Internet Authentication Web Service Protocol
uses services that are provided by external Web services to establish federated
relationships between organizations. In order to operate, the protocol requires
that the service provide the following:
The URL of a service
that provides a Federation Metadata Document, as described in [WSFederation]
section 3.1, with the fields and values as described in section 3.3.1.
The URL of a delegation management service that provides
services, as described in section 3.1 or section 3.2.