Dave Mayo Everware-CBDI 10th SOA for eGov Conference SOA COP

1. Specialists in Service Oriented
Application Modernization
A Service-Oriented Approach
to Application Modernization
SOA for eGov Conference
September 16, 2010
Dave Mayo (dmayo@everware-cbdi.com)
www.everware-cbdi.com
www.cbdiforum.com

2. Everware-CBDI Credentials
Worldwide SOA Leadership in Advisory
Reputation Groups & Standards Bodies
Keynote Speakers on
SOA ACT/IAC
CBDI Forum Website: Chair: EA-SIG/Services
over 25,000 subscribers Committee
SOA Methodology in
Sharepoint Lead Role on Practical
SOA Metamodel Guide to Federal SOA
Submission to OMG Federal SOA Community
of Practice: Co-Chair
Authors/Publications Object Management
CBDI Journal (100+ Editions) Group (OMG)
Articles (eg, EA Journal, Co-Chair: GovDTF
Microsoft Journal) Instruct on EA & SOA
White Papers (eg, Federal CIO National Defense U/
Council, IAC, AFEI) EA Program
Books (eg, Service Industry Conferences
Orientation, Information
Public/Private Courses
Modeling)
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3. Topics
How Did We Get Here?
Service Orientation
Model-Driven Development
Application Modernization
What is Service-Oriented Application Modernization?
Service Architecture Views
Transition Engineering – Iteration & Releases
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4. What’s wrong with us?!
Despite…
technological advances,
methodological advances,
tons of money being dumped in,
the increasing importance to get it right…
60-70% of large projects fail!
In a word… Complexity
1964 – Introduction of System/360
Dawn of portable code and reuse
Early programs still running today!
Billions of lines of new code
are written every year
We’re buried in code!
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5. How Have We Tried to Solve This?
Modeling to understand the problem and solution
Support communication «Capability»
Goods Handling
«Capability»
Security
Enable analysis prior to build
Evolution of implementation strategies «Capability» «Capability» «Capability»
Food Handling Hazardous Material Hazardous Material
Structured programming… Handling Securilty
Gave way to Object Oriented programming…
Got wrapped in Components with CBD… «Capability»
Hazardous Material
Containment
Now offered up as Services in SOA…in the Cloud.
And, of course, Agile methods.
We’re Really Getting at:
Abstracting – Simplifying and generalizing
Encapsulating – Data and internal design
Modularizing – The architecture into “bite-size” pieces
Loose coupling – Minimizing interdependencies to reduce impacts of change
Separating Concerns – Managing each class of issues independently
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6. Why Service Oriented Architecture?
“Service Oriented Architecture (SOA) is the principles, patterns and policies that
enable application functionality to be provided and requested as services published at
a granularity relevant to the Service Consumer, which are abstracted away from the
implementation using a single, standards-based form of interface.” (CBDI 2003)
SOA Benefits
SOA should provide:
• Structured approach to Business IT
deliver loose coupled, Business Process Assemble Solutions
abstracted information Automation Reduced integration
solutions effort
Standardized business
• Reference architecture for practices Productivity through
– Service Customer Partner reuse of standardized
classification/taxonomy participation Services
– Policy implementation Time to Market Reduced cost and
and governance Improvement in Data and complexity by Portfolio
– Contracts Process Quality Rationalization
– Determining sharing and Consistency Virtualization of IT
generalization at many Reduced Risk resources
levels Virtualization of Business Flexibility or
• Basis for a repeatable resources Specialization
engineering process Consistency across
channels
Multi Channel delivery
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