properties to SOAP. The Metadata specification defines how the abstract properties defined in Core are described using WSDL, how to include WSDL metadata in endpoint references, and how WS-Policy can be used to indicate the support of WS-Addressing by a Web service. Web Services Policy Attachment for Endpoint Reference (WS-PAEPR) specifies the mechanism and meaning of including WS-Policy expressions in Endpoint References. WS-PAEPR is a W3C Member Submission. References External links Web Services Addressing Working Group WS-Addressing - Submission Request to W3C Team Comment on the WS-Addressing Submission Addressing