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This paper provides a historical overview of the convergence of ebXML and SOAP protocols, highlighting the resolution reached at the Vancouver meeting in February 2001. It discusses the technical challenges and progress made towards making ebXML TRP SOAP-compliant, emphasizing simplicity and the incorporation of XML DSIG. The text includes a detailed structure of the ebXML/SOAP communication protocol and outlines the key steps taken to enable SOAP with attachments in the ebXML framework.
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ebXML Convergence with SOAP and Attachments Dick Brooks, John Ibbotson and Henrik Frystyk Nielsen
Background • ebXML started in November 1999, continued through 2000 • ebXML viewed SOAP 1.0 as RPC and proprietary • SOAP 1.1 and XML Protocol formation seen as possible convergence route • Strong requirement for non XML (binary) • SOAP + Attachments not available • Technical willingness for convergence • Some IP issues outstanding • Resolution at Vancouver (Feb 2001) meeting • IP statements by SOAP 1.1 and Attachments owners • Work in progress by TRP WG to convert messaging services spec • Approval by ebXML plenary
Disclaimer !!! Note that this is WORK IN PROGRESS
ebXML/SOAP Structure Original SOAP Compliant Communication Protocol (SMTP, HTTP, etc.) MIME multipart/related SOAP-ENV:Envelope /SOAP-ENV:Envelope SOAP-ENV:Header eb:MessageHeader eb:TraceRoute ds:Signature /SOAP-ENV:Header SOAP-ENV:Body eb:Manifest eb:StatusData SOAP-Env:Fault eb:ErrorList /SOAP-Env:Fault eb:Acknowledgements /SOAP-ENV:Body Payload Payload
MessageHeader <ebh:MessageHeader> <ebh:From>example.com</ebh:From> <ebh:To type="userType">...</ebh:To> <ebh:CPAId>http://www.ebxml.org/cpa/123456</ebh:CPAId> <ebh:ConversationId>987654321</ebh:ConversationId> <ebh:Service type="myservicetypes">QuoteToCollect</ebh:Service> <ebh:Action>NewPurchaseOrder</ebh:Action> <ebh:MessageData> <ebh:MessageId>UUID-2</ebh:MessageId> <ebh:Timestamp>20000725T121905.000Z</ebh:Timestamp> <ebh:RefToMessageId>UUID-1</ebh:RefToMessageId> </ebh:MessageData> <ebh:QualityOfServiceInfo deliverySemantics=”OnceAndOnlyOnce” deliveryReceiptRequested=”Signed”/> </ebh:MessageHeader>
Manifest <ebb:Manifest id="Manifest"> <ebb:Reference id="pay01" xlink:href="cid:payload-1" xlink:role="http://regrep.org/gci/purchaseOrder"> <ebb:Description>Purchase Order for 100,000 widgets</ebb:Description> <ebb:Schema location="http://regrep.org/gci/purchaseOrder/po.xsd" version="1.0"/> </ebb:Reference> </ebb:Manifest>
Summary • ebXML TRP will be SOAP compliant • Conversion follows KISS principle ! • Restructuring for SOAP + Attachments • No other major redesign work • Adoption of XML DSIG