3.1.3 Initialization
Before calling this protocol, the client application requires the following:
The URL of a service that provides a Federation Metadata Document, as specified in [WSFederation] section 3.1, with the fields and values as specified in section 3.3.<1>
The URL of a delegation management service that provides services as described in section 3.1.<2>
A DNS TXT record containing the client's application ID on the DNS server for the domain.