Service Oriented Architecture SOA An Overview from BEA

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Service Oriented Architecture (SOA) An Overview
from BEA
SOCITM East Regional ConferenceSeptember 2007

• Kenneth Wright
• BEA Systems Ltd
• September 2007

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About BEA Systems

• At a Glance
• 1.4B revenue
• 2,000 partners
• 4,200 employees
• 18,000 customers
• BEA AquaLogic, WebLogic and Tuxedo product
  families

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SOA Adoption Trends 2005 - 2007
Source InfoWorld 2007 SOA REPORT
2007 Service-Oriented Architecture Graduates to
the Enterprise
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Service-Oriented Architecture (SOA)
SOA is an architectural approach that enables the
creation of loosely coupled, interoperable
business services that can be easily shared
within and between enterprises.
Service-Oriented Architecture
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Service-Oriented Architecture (SOA)
Need to Consider some target architecture
SOA is an architectural approach that enables the
creation of loosely coupled, interoperable
business services that can be easily shared
within and between enterprises.
Service-Oriented Architecture
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Service-Oriented Architecture (SOA)
Need to think about standards, visibility
SOA is an architectural approach that enables the
creation of loosely coupled, interoperable
business services that can be easily shared
within and between enterprises.
Service-Oriented Architecture
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Service-Oriented Architecture (SOA)
SOA is an architectural approach that enables the
creation of loosely coupled, interoperable
business services that can be easily shared
within and between enterprises.
Service-Oriented Architecture
Need to give each role their own view on how to
find services. Must be easy to understand, have
well defined rules of engagement, well documented
and linked for each role.
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Application Infrastructure vs. Service
Infrastructure

• Application Infrastructure
• Service Design and Enablement
• Execution Environment
• Enterprise-Class RASP
• Service Infrastructure
• Cross-platform management
• Governance and control
• Service publishing and discovery
• Service and data integration
• Security
• Process orchestration
• Business interaction

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SOA Reference Architecture Layered Views
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SOA Starting Points
High
MegaProjects
Business-LedProjects
Business Sponsorship
ProcessProjects
IT-LedProjects
Low
Low
High
SOA Complexity
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SOA is Business Driven
Product inquiry
SOA A Service Invocation Framework
Product inquiry
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SOA Service Lifecycle Design, Development and
Deploy
Business Analyst
Business Process Modeling
ServiceArchitect
Business Activity Monitoring
Core Metadata
Management
Service Development
Service Develop and Deploy
BusinessOperations
Monitoring
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Service ModelingServices That Map To Real
Business Processes, Not As Silo-ed Apps

• Think strategically, execute tactically start
  with a single core process
• Top down identify the services required to
  support this single core process
• Bottom up identify functions in existing systems
  that could be exposed as services to support this
  process
• Infrastructure services identify common
  supporting functionality requirements

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What is a Service

• Service Contract
• The service contract specifies the purpose,
  functionality, constraints, and usage of a
  service. The contract is defined by the business
  in business terms.
• Service Interface
• A Service interface provides a means for the
  users of a service to access its functionality
  according to the contract it offers. A given
  service may offer multiple interfaces to allow
  consumption of the service through different
  means.
• Service Implementation
• The implementation part of a service is the
  actual code. The implementation may be
  accomplished using any technology.
  Implementations, especially early ones, often
  represent functionality that already exists in an
  enterprise.

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Project Approach Incremental Project Harvesting
Applications
Composite Applications
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2
3
Presentation Services
1
3
4
5
5
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Service Infrastructure Layer
Shared Business Services
Services Management
Service Bus
Common Services
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7
5
9
10
11
12
2
7
8
9
7
3
Information and Access Services
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11
7
1
2
4
6
8
12
10
11
9
3
11
9
1
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Cost Curve Over Time
Services Catalog
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2
3
4
5
6
7
8
9
10
11
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Shared Services Functional Architecture
Business Process Services
Shared Services
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Service Modeling
Service Modeling What services should be
created? What is the process for identifying
these services? What are the characteristics
that identify these services?
?
?
?
?
?
Business Process Services
?
Shared Services
?
?
?
?
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Service Enablement
Business Process Services
Shared Services
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Integration Services
Composite Applications
Shared Service Access
Business Process Services
Shared Services
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Business Process Services
Business Process Services
Shared Services
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Presentation Services
Business Process Services
Shared Services
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Shared Service Access
Business Process Services
Shared Services
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Shared Service Access
Business Process Services
Shared Services
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Connecting Applications is Not Enough The
Point-to-Point Integration Approach Inhibits
Agility

• Point-to-Point
• Brittle connections
• Redundant logic
• Doesnt scale
• Lack of visibility
• Business Impact
• Delays responding to changing business needs

Service
Service
Service
Service
Service
Service
Service
Service
The Solution Service Integration
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Enterprise Service BusSummary
Enterprise Service Bus

• Embedded service management - optimized
  governance of all messaging
• Rich composition environment - configuration
  driven, no coding approach
• Optimized pluggable security secure any service
• Adaptive service messaging - connect any service
• Best-of-breed distributed run-time -
  reliability, availability, scalability, and
  performance

Service
Service
Service
Service
Service
Service
Service
Service
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Benefits of SOA

• Allows IT to deliver services faster and align
  closer with business
• Use existing assets more effectively
• Improved productivity, agility and speed for
  Business IT
• Reduced development times and costs through
  re-use
• Decreased integration costs and risks
• Lower maintenance costs and higher data integrity
• Allows business to respond quicker and deliver
  enhanced user experience
• Enables new ways to relate to employees, partners
  and customers

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Reference Architecture
Portal Tier
Portlet
Web App
Process Tier
Process Integration Process Management
Security Services Enterprise Security
Service Integration Enterprise Service Bus
Service Integration
Data Services Data Services Platform
Service Registry Service Registry
Data Service
Data Service
End-to-end Web Services Management
Data Warehouse
Tuxedo
.Net
J2EE
Packaged Apps
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The BEA Stack (SOA Driven)
Business Process Management
Enterprise Service Bus
Application Integration
User Interaction
Enterprise Registry Repository
Data Services
LegacyApplications
CustomApplications
Database
LegacyApplications
PackagedApplications
Database
XML DataSource
PackagedApplications
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The BEA Stack (The Products)
AquaLogic BPM Suite
AquaLogic Service Bus
WebLogic Integration
AquaLogic User Interaction
AquaLogic Enterprise RepositoryAquaLogic Service
Registry
AquaLogic DSP
LegacyApplications
CustomApplications
Database
LegacyApplications
PackagedApplications
Database
XML DataSource
PackagedApplications
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Thank You