SOA And Cloud Computing

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

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

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.

SOA Principles
Reuse
Granularity / Modularity / Componentization
Loose Coupling / Contractual Design
Interoperability / Standards Compliance
Abstraction / Encapsulation
Composability
Discoverability
Manageability

SOA Principles, Redux (for “Small SOA”)
Reuse
Granularity / Modularity / Componentization
Loose Coupling / Contractual Design
Interoperability / Standards Compliance
Abstraction / Encapsulation
Composability
Discoverability
Manageability

SOA, Meet Cloud Computing
SO-Architecture
A different approach to organize enterprise IT resources
Governance
Management
Strategic framework and planning
People and process
IT-as-a-Service
A different model to leverage computing resources
Service design
Higher-level abstraction
Tactical and incremental implementation
Data and technology

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)

Web as a Platform
“Intercloud”

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

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.

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SOA And Cloud Computing

by David Chou on Dec 04, 2009

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