Configuration Guides › Policy Server Configuration Guide › Authentication Schemes › XML Document Credential Collector Authentication › How Data Flows During XML DCC Authentication
How Data Flows During XML DCC Authentication
The XML DCC authentication scheme collects information from an incoming XML document and passes it to the Policy Server to authenticate web service consumers
The following illustration shows the flow of the XML DCC authentication scheme.

- The client sends a XML document requesting access to a web service.
- The SOA Agent extracts credentials from the document and passes them to the Policy Server.
- The Policy Server maps the credentials to fields in the user store to authenticate the client.