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Promoting Web services interoperability across platforms, applications and programming languages

Promoting Web services interoperability across platforms, applications and programming languages. October, 2002. The Context. Businesses need to innovate at an ever increasing pace Success requires broad interoperability Within an enterprise Between business partners

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Promoting Web services interoperability across platforms, applications and programming languages

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  1. Promoting Web services interoperability across platforms, applications and programming languages October, 2002

  2. The Context • Businesses need to innovate at an ever increasing pace • Success requires broad interoperability • Within an enterprise • Between business partners • Across a heterogeneous set of platforms, applications and programming languages • Internet technologies are assumed, interoperability is required

  3. The Context • The shift to Web services is underway • An Internet-native distributed computing model based on XML standards has emerged • Early implementations are solving problems today and generating new requirements • The Web services standards stack is increasing in size and complexity to meet these requirements • The fundamental characteristic of Web services is interoperability

  4. The Challenge “[the] architecture of Web services is not fully crystallized. Without guidance, standards may fragment” Gartner Group, March 12, 2001 “Inevitably, companies involved with Web services will define them in their own way. The term Web services will be a messy catchall phrase.” Intelligent Enterprise, June 29, 2001 “standards…allow Web services to overcome the barriers of different programming languages, operating systems, and vendor platforms so multiple applications can interact.” eWeek, August 13, 2001

  5. The Opportunity ? Interoperability will accelerate Web services adoption

  6. What is Needed? • Guidance • A common definition for Web services • Implementation guidance and support for Web services adoption • Interoperability • Across platforms, applications, and languages • Consistent, reliable interoperability between Web services technologies from multiple vendors • A standards integrator to help Web services advance in a structured, coherent manner

  7. Goals • Achieve Web services interoperability • Across platforms, applications and languages • Encourage Web services adoption • Among customers, industries and end users • Accelerate Web services deployment

  8. Achieve Interoperability • Promote a common, clear definition for Web services • Integrate specifications from various standards bodies • Provide a visible representation of conformance through use of WS-I logo

  9. Encourage Adoption • Build industry consensus to reduce early adopter risks • Provide a forum for end users to communicate requirements • Act as a customer advocate to raise awareness of business requirements

  10. Accelerate Deployment • Offer implementation guidance and best practices • Deliver tools and sample applications • Provide a forum for Web services developers to collaborate and share expertise

  11. WS-I Organization • Board • Management and administration body • Ensure the organization and its working groups adhere to their defined scope • Working groups • Develop materials and other deliverables to aid Web services interoperability • Membership • Vote to approve adoption and distribution of any materials developed by the working groups

  12. Initial Working Groups • Scenarios and Sample Applications • Anthony Roby, Accenture • Sinisa Zimek, SAP • Web Services Basic Profile • Keith Ballinger, Microsoft • Testing Tools and Materials • Jacques Durand, Fujitsu

  13. WS-I.org Deliverables • Implementation scenarios • Solution scenarios based on customer requirements • Profiles • Named groups of specifications at given version levels with conventions about how they work together • Test suites and supporting materials • Conformance testing tools • Supporting documentation and white papers • Sample code and applications

  14. Simplified Working Group Flow Use Cases Usage Scenarios Sample Applications Scenarios and Sample Applications Web Services Basic Profile Profiles Testing Tools and Materials Testing Tools Other Test Materials

  15. Profiles Profile • Provide guidance on general purpose Web services functionality • Address interoperability at a level above specification-by-specification • Supporting specifications and standards will be considered from multiple industry sources • Profile development will reflect market needs and requirements Links to Specs Conventionsand BestPractices

  16. Use Cases and Usage Scenarios • Capture requirements • Use cases capture business requirements • Usage scenarios capture technical requirements needed for Web services to meet these business requirements • Drive profile creation • Prompt revision to an existing profile • Become the requirements statement for a new profile • Drive sample application creation • Sample applications represent a solution to a use case

  17. Test Activity • Test tools and materials • Designed to test Web service implementations for errors and to ensure conformance with the profiles • Final materials available to all Web service developers • Sample applications • Implementation of one or more use cases • Built in multiple languages to run on many platforms • Validate correct functioning of test tools • Demonstrate profile-based interoperability • Source code for the implementations will be available

  18. Test Activity • Test resources • A Web services monitoring tool (Sniffer) will collect messages to and from Web services • A logging tool (Logger) will record the messages • An analysis tool (Analyzer) will examine traces for conformance with WS-I profiles and issue a report • Output of analysis tools will be used as the basis for WS-I conformance claims • Tools can be used by any Web services developer • Source code will be available

  19. WS-I in the Marketplace • Tool developers will advertise that their products support development and deployment of conformant services • Middleware vendors will advertise that their products support conformant service hosting • Customers will look for WS-I conformance on products

  20. WS-I Conformance • Logos are a label for customers to look for • Logos can be used for implementations that have successfully passed testing • Web services providers will be self-certifying • Enforcement is market driven • Expected review by competitors and trade media

  21. WS-I Schedule February 6 – Launch of WS-I April 17 – First WS-I Community Meeting July 24 – Second WS-I Community Meeting July 24 – Rev 0.1 of deliverables November 5 – Third WS-I Community Meeting 4Q ‘02 –Basic profile released (Interim dates will be set by working groups)

  22. Call to Action • Join • Join a community of more than 135 industry leaders and visionaries with a shared vision for Web services interoperability • Foster commitment across the community • Participate • Encourage customer participation and buy-in • Commit to an aggressive schedule for delivering resources to aid Web services implementations • Conform • Ensure implementations conform with WS-I profiles • Promote conformance to customers and partners

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