SOA Governance
Sumedha Rubasinghe
(sumedha@wso2.com)

Agenda

What & Why?

When & How?

WSO2 Governance Registry

Important Concepts

Best Practises

Patterns in SOA Governance
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Hi...Chanaka here.
I am an Architect.
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What a mess ..... :-(
How can I make this better?
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Solution

SOA Governance can solve this problem

Governance applied to 4 phases
– Architectural Governance
– Design time Governance
– Operational Governance
– Organisational/Political Governance
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Ok.. show me how..
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Architectural Governance
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Design Time Governance
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Design Time Governance
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Design Time Governance
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Design Time Governance
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Design Time Governance
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Design Time Governance
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Design Time Governance
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hmm....ok..
now we have services
in production.
What's next?
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Operational Governance
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Operational Governance
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Operational Governance
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Operational Governance
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Operational Governance
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Operational Governance
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Operational Governance
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Operational Governance
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Operational Governance
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My organisation follows
an adhoc methodology...
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Organisational/Political Governance
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Show me how the scenario
changes after following
all these..
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SOA Governance applied...
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Hmm.. looks lot cleaner..
How to identify if I have
Problems in my SOA
Governance framework?
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Quality of execution

Bad one
– No planning and coordination of service projects
– Single-use services and point-to-point
connections
– Change Management issues
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Quality of execution

Good one
– Well scoped, recognisable business benefits
– Sharing of services & data types
– Ability to recognise issues early
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Looks like Registry/Repository
is a key concept..
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Registry/Repository
 Service configurations
– wsdl

Server configurations
– jboss.xml
– server.xml

Deployable artifacts
– jar,aar,ear,war,etc..

Meta data related to implementations
– hibernate-config.xml
– jaxb-mappings.xml
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So.. what does WSO2 has
to offer in this space?
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WSO2 Governance Registry

Lightweight registry & repository

Governance framework for building customer
specific governance features

Open Source - Apache License, Version 2.0

Commercial support available (if needed)
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WSO2 Governance Registry

Features
– Simple, lightweight registry with 100% RESTful interface
powered by Atom and AtomPub
– Hierarchical authentication and authorization support
– Dependency management, Lifecycles and dashboard
– Highly extensible via media type specific handles and
more
– Social features including tagging and rating of all
resources
– 100% integrated to all other products
– Local and remote access
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WSO2 Governance Registry
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WSO2 Governance Registry
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Looks like service is a key
component in SOA...
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Service in SOA
 Heart of SOA
 Life cycle
– Designed
– Developed
– QA passed
– In Production
 Metadata
– WSDL
– Schema
– Policy
 Publish & Discovery
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Service in SOA
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If I am evaluating a SOA Governance
Product, what are the
keys features/core concepts to
look for?
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Core Concepts

Versioning
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Core Concepts

Publish & Discovery
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Core Concepts

Associations & Dependencies
– Relationship between resources
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Core Concepts

Federation
R1 R2
R
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Core Concepts

Control (Permissions)
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Core Concepts

Control (Life cycles)
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Core Concepts

Control (Life cycles)
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Core Concepts

Control
– Validations (Built-in: WS-I, WSDL)
– Check lists
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Core Concepts

Monitoring (Notifications)
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Core Concepts

Monitoring (Dashboard)
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Important Concepts

Monitoring (Dashboard)
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Core Concepts

Auditing
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Core Concepts

Extensibility
– Most important of all..
– Governance cannot be bought, you need to
customise it..
– BAM (Business Activity Monitoring)
– BI (Business Intelligence) gathering
– CEP (Complex Event Processing)
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I want to introduce SOA Governance
to my organisation. Give me some best
practises..
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Best Practises

Establish early

Organisational acceptance for Governance

Communicate relentlessly

Automate

Govern the entire service lifecycle

Anticipate mixed technologies

Monitory,access & report business value

Consider cross organisational boundaries
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If I use WSO2 Governance Registry,
what are the recommended deployment
Architectures? ..
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Deployment Architecture 1
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Deployment Architecture 2
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Are there patterns associated with
SOA Governance?
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Patterns – Compatible Change
• Problem - Changing an already-published
service contract can impact and invalidate
existing consumer programs.
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Patterns – Compatible Change
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Patterns – Compatible Change
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Pattern – Version Identification

Problem - When an already-published service
contract is changed, unaware consumers will
miss the opportunity to leverage the change or
may be negatively impacted by the change.
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Pattern – Version Identification
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Pattern – Version Identification
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Pattern – Proxy Capability

Problem - How can a service subject to
decomposition continue to support consumers
affected by the decomposition?
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Pattern – Proxy Capability
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Pattern – Proxy Capability
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Pattern – Distributed Capability

Problem - How can a service preserve its
functional context while also fulfilling special
capability processing requirements?
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Pattern – Distributed Capability
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Pattern – Distributed Capability
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Pattern – Termination Notification

Problem - How can the scheduled expiry of a
service contract be communicated to
consumer programs?
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Pattern – Termination Notification
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Pattern – Termination Notification
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How do I get started?
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Getting started with WSO2
Governance Registry

Download binary distribution from
– http://wso2.org/downloads/governance-registry

Latest is v3.0.0

Unzip

Run bin/wso2server.sh (on Unix) or
bin/wso2server.bat (on Windows)

Management console
– https://localhost:9443/carbon
– admin/admin
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Help... I messed it up
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How to get help?
 Oxygen Tank for Web Service Developers
– wso2.org
 Online forum
– http://wso2.org/forum/351
 Mailing List
– carbon-user@wso2.org
 Commercial Support (if required)
– Training
– Consultancy
– Custom Development
– Production Support
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Summary
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References

http://soa.sys-con.com/node/175376/print (SOA
Governance Best Practices – Architectural,
Organizational, and SDLC Implications)

http://www.informit.com/articles/printerfriendly.aspx?p
(SOA Design Patterns: Service Governance
Patterns)
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Thank you
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