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Exchange Network Node 2.0 Open Conference Call

Exchange Network Node 2.0 Open Conference Call. March 26th, 2008. 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)

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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 March 26th, 2008

  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 • Tom Aten, Wisconsin DNR • 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 4, 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 4, 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. Remaining Issues • ‘Recipients’ will be clarified further, either: • In the specification, or • In a ‘best-practices/guidelines’ document for flow developers who wish to use ‘recipients’ • Get Services Schema • The Node 2.0 Task Force is developing the schema

  16. 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 4, 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

  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 • 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 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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