1 / 21

Convergence in Messaging Frameworks

Convergence in Messaging Frameworks . Pim van der Eijk. Enterprise Application Integration, Workflow Management. Participation in e-business (e-Government) collaborations. Managed public and private processes: B2B/G2G integration. Public Process Rules Tier.

adolfo
Télécharger la présentation

Convergence in Messaging Frameworks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Convergence in Messaging Frameworks Pim van der Eijk

  2. Enterprise Application Integration, Workflow Management Participation in e-business (e-Government) collaborations Managed public and private processes: B2B/G2G integration PublicProcessRules Tier IBM Patterns for e-Business http://www-106.ibm.com/developerworks/patterns/

  3. ebXML • Technicaland semanticinteroperability • Modular, cohesive set of standards developed from 1999 • Open Standards (OASIS, ISO and UN/CEFACT) • Initially over-hyped, now lacking visibility in the market place, despite some (very) large end user projects and increasing vendor support • Advanced functionality for secure reliable messaging, choreographed business collaborations, partner agreements and management • Focused on external integration (B2B, G2G) • ISO 15000 standards since 2004

  4. ebXML modules • ebXML Messaging (ebMS) • Secure, reliable business messaging • Version 2, certified interoperable messaging since 2002 • Version 3, OASIS standard since October 2007 • Collaboration Protocol Agreements (CPA) • Business service contract language • Partner agreements, service profiles • Business Process (ebBP) • Choreography of service/action invocations • Business Activity Monitoring (BAM) • Registry • Information Model and Services • Core Components • Information model for vocabularies and business documents

  5. ebXML Messaging • B2B application of Web and Internet standards: • Leverages SOAP, MIME Attachments, HTTP bindings • W3C XML Security and Encryption • Generic Business Document Header • Business Partners • Services and Business TransactionSemantics • ConversationId: Business Context • Applicable “Business Contract” • Payload information • Reliable Message Delivery • Once-and-Only message delivery • Security • W3C Digital Signature • Payload Encryption

  6. Public Sector Deployments of ebMS • Norway, Social Security / Healthcare • UK, Healthcare • Netherlands • Justice, Police, Youth protection • OSB (“Government Service Bus”) ebMS profile • Sweden, Public Procurement • Hong Kong government

  7. AS2 EDIINT • EDIINT: EDI over the Internet • Internet Engineering Task Force (IETF) “Applicability Statements” • AS1: EDI using SMTP • AS2: EDI using HTTP • AS3: EDI using FTP • Wal-Mart endorsement of AS2 in 2002: • AS2 (RFC 4130) is now the de facto standard in electronic commerce • AS2 also user-preferred protocol for new areas • Data synchronization, tracking and tracing

  8. How about public sector? G2G protocols • OSCI • “Online Service Computer Interface” • German public sector standard • SHS • Swedish public sector standard, developed at Statskontoret (Swedish Agency for Public Management) • eLINK • EU Commission, IDA, November 2004 • SuwiML transactiestandaard • BKWI (Netherlands Social Security) eLink: http://ec.europa.eu/idabc/servlets/Doc?id=18685 OSCI http://www1.osci.de/sixcms/media.php/13/osci-specification_1_2_english.pdf SHS http://www.statskontoret.se/upload/804/shs-architecture.pdf SuwiML http://www.bkwi.nl/fileadmin/downloads/Suwinet/sgr/SuwiML_Transactiestandaard_v0200.pdf

  9. Web Services, WS-* • Core standards: • SOAP, WSDL, UDDI • Advanced functionality: • Security: WS-Security, WS-Trust and WS-SecureConversation • Reliability: WS-Reliability and WS-ReliableMessaging • Transactionality: WS-Transactions • WS-I interoperability profiles

  10. Web Services Deployments • Basic Web services profiles are widely used • Denmark “RASP” WS-* profile • France, PRESTO

  11. Summary • Today’s messaging environment is a mixed bag: • Pre-Internet protocols • EDIINT • Simple XML over HTTP • Government specific frameworks • ebXML Messaging 2.0 • Web Services variants • Time for convergence? • Requirements? • SME(*) support, client-only endpoints • Intermediaries • Non-Repudiation of Receipt (NRR) • Large message support (*)Including small-and-medium-size public sector agencies

  12. ebXML Messaging 3.0 • Web Services Convergence • SOAP 1.1 or SOAP 1.2 • SOAP with Attachments or MTOM • WS-Security 1.0 or 1.1 • WS-Reliability 1.1 or WS-ReliableMessaging 1.1 • New features • Message Pulling (client-only endpoints) • Intermediaries • Non-Repudiation of Receipt (NRR) • Compression • Compatible with WS-I profiles • Basic Profile (BP), Basic Security Profile (BSP), Reliable Secure Profile (RSP)

  13. ebMS3 - WS Protocol Convergence

  14. OASIS Standard Ballots in 2007, sorted descending by % positive votes • ebXML Messaging Services version 3.0, Part 1, Core Features • WS-BPEL (Business Process Execution Language) • DSS (Digital Signature Services) • WS-Trust • WS-ReliableMessaging • WS-SecureConversation • WS-Transaction • WS-Context • Election Markup Language (EML) • Content Assembly Mechanism (CAM) • OpenDocument 1.1 • WS-SecurityPolicy 1.2 • SAML Metadata Extension for v2.0 and v.1.1 • Darwin Information Typing Architecture (DITA) • XML Localization Interchange File Format (XLIFF) 1.2

  15. Requirement: client-only endpoints • Assumption in early work on ebXML and Web Services: • Message Sender = Client = “Active” • Message Recipient = Server = “Passive” • Assumes 24/7 available B2B server • Assumes incoming connections through firewall • Compare this to the email model: • Recipient “actively” collects mail from server • Email is stored on server while client is off-line • Clients need not be on-line 24/7 • No need to open firewall

  16. ebMS 3.0 “Pull” mode 2 Pull-Capable V3 MSH “Pulling” V3 MSH 1 Pull Request Deliver Message 4 3 Pulled Message • Submit Message (for sending) • Message queued for future pulling • Sender application need not be “pull-aware” • PullRequest Signal • Generated by requesting MSH (not application) • Targets a channel, secured/ authorized for the channel • Pulled Message • Pulled message sent over HTTP response (if HTTP) • Sent Reliably (“Exactly-Once” delivery) 1 2 3

  17. Requirement: Intermediaries • Segmented (private) networks where point-to-point communication is not possible (routing) • Store-and-forward and store-and-collect messaging • Business added-value (message traceability, archival, timestamping) • End-to-end reliability • End-to-end security

  18. 3 Pull Request 1 Deliver Message 5 Submit Message 2 Pushed Message 4 Pulled Message Mixing intermediaries and “pull” • “Push-then-push” store-and-forward or streaming • Store-and-collect by mixing push and pull • Also allow a “pushed” message to be “pulled” • Compatible with business added-value services Pull-Capable Intermediary “Light” V3 MSH Endpoint MSH

  19. Comparison: OSCI Intermediaries, Active Recipient

  20. AS4: a B2B Web Services Profile • New project aimed at: • Creating the functional equivalent of AS2 by mapping those requirements onto the Web services platform. • Entry-level on-ramp for Web services B2B messaging. • Constrained profile for ebMS 3.0 and underlying WS-* standards, plus: • Non-repudiation of receipt • Large message support

  21. Summary and Conclusion • Today’s environment: • A variety of messaging frameworks are in deployment • WS-* provides increasing sophistication and standards in the lower-levels of the stack • Some e-Government protocols have features not addressed in any current WS-* standard • ebMS 3.0 provides: • WS-* convergence • Supports requirements for “active” (pulling) messaging and non-repudiation • AS4 and intermediary profiles add support for interoperable transparent intermediaries, compression, NRR

More Related