Web Services Addressing (WS-Addressing)
August 2004
Authors
Don Box, Microsoft (Editor)
Erik Christensen, Microsoft
Francisco Curbera, IBM (Editor)
Donald Ferguson, IBM
Jeffrey Frey, IBM
Marc Hadley, Sun Microsystems, Inc.
Chris Kaler, Microsoft
David Langworthy, Microsoft
Frank Leymann, IBM
Brad Lovering, Microsoft
Steve Lucco, Microsoft
Steve Millet, Microsoft
Nirmal Mukhi, IBM
Mark Nottingham, BEA
David Orchard, BEA
John Shewchuk, Microsoft
Eugène Sindambiwe, SAP
Tony Storey, IBM
Sanjiva Weerawarana, IBM
Steve Winkler, SAP
Copyright Notice
(c) 2002-2004 BEA Systems Inc., International Business Machines Corporation, Microsoft Corporation, Inc, SAP AG, and Sun Microsystems. All rights reserved.

Permission to copy and display the WS-Addressing Specification (the "Specification"), in any medium without fee or royalty is hereby granted, provided that you include the following on ALL copies of the Specification that you make:

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2. The copyright notice as shown in the Specification.

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Abstract
WS-Addressing provides transport-neutral mechanisms to address Web services and messages. Specifically, this specification defines XML [XML 1.0, XML Namespaces] elements to identify Web service endpoints and to secure end-to-end endpoint identification in messages. This specification enables messaging systems to support message transmission through networks that include processing nodes such as endpoint managers, firewalls, and gateways in a transport-neutral manner.

Status
WS-Addressing and related specifications are provided as-is and for review and evaluation only. BEA, IBM, Microsoft, SAP, and Sun make no warrantees or representations regarding the specifications in any manner whatsoever.

Table of Contents
1. Introduction

1.1 Notational Conventions

1.2 Namespaces

2. Endpoint References

2.1 Information Model for Endpoint References

2.2 Endpoint Reference XML Infoset Representation

2.3 Binding Endpoint References

2.4 Endpoint Reference Comparison

3. Message Information Headers

3.1 Message Information Headers XML Infoset Representation

3.2 Formulating a Reply Message

3.3 Associating Action with WSDL Operations

3.3.1 Explicit Association

3.3.2 Default Action Pattern

4. Faults

4.1 Invalid Message Information Header

4.2 Message Information Header Required