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Exchange Network Node 2.0 Open Conference Call

Join the conference to learn about the technical changes from Draft 8 to Draft 9 for Node 2.0, testing opportunities, Q&A session, and the journey to Node 2.0. Updates include SOAP 1.2, Doc/Literal WSDL, and MTOM changes driven by vendor support issues. Ask questions anytime during the call and stay updated on the latest changes in Node 2.0.

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Exchange Network Node 2.0 Open Conference Call

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  1. Exchange Network Node 2.0 Open Conference Call February 27th, 2007

  2. Introductions • This conference call is hosted by the Network Technology Group (NTG), which is the technical work group of the Exchange Network (EN) governance • NTG members present: • Connie Dwyer, EPA OEI (EPA Co-chair) • Glen Carr, Oregon DEQ (State Co-chair) • Dennis Burling, Nebraska DEQ • Chris Clark, EPA OEI

  3. Conference call agenda • Provide a detailed description of the proposed technical changes from Draft 8 (October 5, 2007) to Draft 9 (March 3, 2008) • Update on revised Node 2.0 Timeline • Update on Node 2.0 Testing Opportunities • Q&A - Collect your feedback on Node 2.0 needs and concerns

  4. Conference call basics • Feel free to ask questions at any time during the presentation: before, during, or after! • Please put your phone on mute when you’re not asking questions (if your phone has a mute function) • Please don’t put this call on hold if your hold function plays music • This web conference has a chat feature. Please feel free to send questions or comments to the meeting organizers at any time during the call.

  5. The journey from Node 1.1 to Node 2.0 • Late summer 2006: NTG work group starts discussing Node 2.0 • June 2007: Node 2.0 revision 7 WSDL, Specification release to EN for comment • June – Present: continued development of WSDL, Specification • October 5, 2007: Node 2.0 Draft 8 WSDL, Specification released • February 11, 2008: Node 2.0 Draft 8 Unit Testing completed • March 3, 2008: Release of Draft 9 WSDL, Specification

  6. Basic changes in Node 2.0 • Three major changes to Node technologies • SOAP 1.2 • Doc/Literal WSDL • MTOM • Changes primarily driven by vendor support issues • These changes will be mostly transparent but are important for other reasons: • Bring the Exchange Network up-to-date with current standards for web services • This means that the same platform (e.g. SOAP 1.2 handler) that runs Node 2.0 can easily be adapted to inter-operate with other Web services networks

  7. What’s New in Node 2.0: SOAP 1.2 and Doc/Lit WSDL Soap 1.2/MTOM • SOAP 1.1 is no longer supported by Java or MS .NET WS toolkits. • SOAP 1.2 utilizes MTOM (now a W3C standard) to attach binary messages which has a unified infoset, is simple to design and implement, and is the new standard for WS payloads over SOAP. Doc/Literal WSDL • The Node 1.1 WSDL is RPC/Encoded. • Standard, but inconsistent implementation due to encoding type definitions. • Doc/Literal allows WSDL types to be defined like normal XML schema.

  8. Node 2.0 Draft 9 Specific Changes • Parameters • Parameters are now defined as an element/attribute pair. • Includes ability to specify unique type for each parameter. • All nodes are expected to support String and XML parameters. • Additional allowable types are enumerated in the WSDL and are optional for nodes to support.

  9. Node 2.0 Draft 9 Specific Changes • Query Paging • Expanded from Node 1.1 • Return result set based on rowID, maxRows • Query paging parameters must always be included in the response. • If a node is unable to page query results, it should return the entire result with values of: • rowID = 0 • maxRows = 0 • lastSet = true

  10. Node 2.0 Draft 9 Specific Changes • Synchronous Status Response • Response for Submit and Solicit includes: • Status Code = Received, Pending, Processed, Complete, and Failed. • Status detail contains free form text. • These return elements are required, however if a node cannot support granular status reporting, a status code of ‘Received’ may be returned instead of actual values.

  11. Node 2.0 Draft 9 Specific Changes • Automatic Email/Node notification • Ability to supply either a valid email URI or Node URI and automatically receive a notification message when a transaction status changes • New notificationURI WSDL construct allows for granular notification • Only receive emails on error, warning, failure, etc. • Nodes should return a non-critical error if this feature is unsupported or if the email address is unavailable or invalid

  12. Node 2.0 Draft 9 Specific Changes • Dynamic submission routing • Via the new ‘recipients’ parameter • Specify either a Node URI or email URI • Nodes receive a forwarded submission • Emails receive transactionID. • Creates ability to create ‘ad hoc’ dataflows – i.e. dynamic submissions

  13. Node 2.0 Draft 9 Specific Changes • GetServices method • GetServices Response will return an XML response defined in an outside schema. The current version of the GetServices schema will be specifically referenced in the Specification as the required return. • A GetServices response is required from all EN Nodes. • Nodes that are not able to dynamically generate a GetServices response message should return a static description of the services offered by the node as defined in the Specification.

  14. Node 2.0 Draft 9 Specific Changes • Execute method • Expandable interface for services: • Future EN Services • Outside Web Services • Legacy Node 1.1 applications • This method will be optional for nodes to implement

  15. Node 2.0 Timeline • February 2008 • Modification/revisions to the WSDL, specification, and protocol process • Task force discussion on any issues that arise during testing • Basic Unit Testing of the WSDL and Specification • NTG review and acceptance of modification and revisions • March 3, 2008 • Node 2.0 WSDL and Specification Draft 9 made available to the user community and for comment • April 2008 • Modification/revisions to the Node 2.0 WSDL and Specification • NTG review and acceptance of modification and revisions • May 2008 • Finalize Node 2.0 WSDL, Protocol, Specification and supporting documentation • June 2, 2008 • Release all Node 2.0 items (Specification, WSDL, and Protocol) • Start Node 2.0 implementations and operations

  16. Node 2.0 Unit Testing Summary

  17. Opportunities for you to participate in Node 2.0: Development • The NTG is asking for comments and suggestions on every aspect of Node 2.0 • Draft 9 WSDL and Specification • Support Materials • Exchange Network Guidance • Please look for Draft 9 distribution package on March 3. • For more specific information on technical Node 2.0 materials, please visit the Node 2.0 page at: www.exchangenetwork.net/node

  18. Opportunities for you to participate in Node 2.0: Testing • Node 2.0 Test-tool under development. • Two phases of testing: • Unit testing individual methods (completed) • Functional Testing basic exchange scenarios (April 2008) • The NTG is still looking for vendors (or other Network Partners) to code additional Nodes, including: • .NET, Java and an Open Source Node • Alternate Web Service Implementations

  19. How do I stay connected? • Updates on Node 2.0 will be posted to the Node page on Exchange Network website: www.exchangenetwork.net/node • Slides from this call will be posted shortly • NTG will use Network Alerts to inform you of key updates on Node 2.0 and to announce future open calls • NTG will contact those vendors/Network partners who express an interest in coding a Node implementation to discuss a communications process

  20. Connie Dwyer, EPA Co-chair EPA OEI Dwyer.connie@epa.gov (202) 566-1691 Glen Carr, State Co-Chair Oregon DEQ carr.glen@deq.state.or.us (503) 229-5062 How to communicate on Node 2.0 • The Exchange Network Message Board has a forum set up for you to ask questions and collaborate with other Network partners: http://www.websitetoolbox.com/tool/post/exnet/vpost?id=2212821 • To contact the NTG directly: • E-mail questions to: node2.0@exchangenetwork.net OR • Contact the NTG co-chairs:

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