Discussion on impact of cloud computing to enterprise SOA efforts. Deck delivered at the 2009Q4 Microsoft Architect Council events

1. SOA and Cloud Computing David Chou david.chou@microsoft.com blogs.msdn.com/dachou

2. State of SOA Perceptions SOA = IT centralization/standardization “SOA is dead” (Anne Thomas Manes, Burton Group; January 2009) Cloud computing will replace SOA Reality SOA does not solve all enterprise IT issues SOA is complex, and difficult Core value of SOA is agility, but needs vary SOA demands change, but organizational resistance is often the biggest impediment Need to focus on architecture, not technology

3. SOA Manifesto http://www.soa-manifesto.org/ Service orientation is a paradigm that frames what you do. Service-oriented architecture (SOA) is a type of architecture that results from applying service orientation. We have been applying service orientation to help organizations consistently deliver sustainable business value, with increased agility and cost effectiveness, in line with changing business needs. Through our work we have come to prioritize: Business value over technical strategy Strategic goals over project-specific benefits Intrinsic interoperability over custom integration Shared servicesover specific-purpose implementations Flexibilityover optimization Evolutionary refinement over pursuit of initial perfection That is, while we value the items on the right, we value the items on the left more.

5. Granularity / Modularity / Componentization

6. Loose Coupling / Contractual Design

7. Interoperability / Standards Compliance

8. Abstraction / Encapsulation

9. Composability

10. Discoverability

12. Granularity / Modularity / Componentization

13. Loose Coupling / Contractual Design

14. Interoperability / Standards Compliance

15. Abstraction / Encapsulation

16. Composability

17. Discoverability

19. Extending Enterprise SOA to the Cloud Resources beyond enterprise boundaries (networks without borders) Cloud as a collection of capabilities/services to leverage (“Intercloud” – an interconnected global “cloud of clouds”) Loose-coupling everywhere (in service contracts, data relationships, process dependencies, identity, communication models, performance expectations, change management processes, etc.) More trust needed (lower security requirements, virtual & shared infrastructure, multi-tenancy, Internet transit, etc.) Different fault zones/domains, criticality tiers (one big monolithic SOA vs. federated distributed SOA) New development efforts (instead of moving legacy applications into someone else’s data center)

20. Web as a Platform “Intercloud”

21. Emerging Trends De-perimeterization Democratization of industries Dynamic business models Relationship networking core competencies Shifting process centers of gravity Plug-and-play IT architectures Model-driven development

22. Thank you david.chou@microsoft.com blogs.msdn.com/dachou © 2009 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.