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SOA Alliance: SOA
Reference Architecture
Contributors:
Ashok Kumar, Cendant
Jeffery Lamb, Wells Fargo
Tom Mitchell, Wells Fargo
Burc Oral, Dev Atma Technologies
Yogish Pai, BEA Systems
Sankar Ram Sundaresan, HP
Agenda
Industry Background
SOA Blueprint Objectives
SOA Lifecycle & Maturity Model
SOA Reference Architecture
2
Business and IT Pain Points
IT Pain Points
Business Pain Points


Globalizations: Competition from
IT is an after thought
geographies that have lower cost structures


Economic Pressures: Record cash

Business Process Outsourcing:
Lack of Cohesive Business
Information Strategy across the enterprise

Regulatory Compliance: Must comply
to stay in business

Technology: New technologies that
provide additional business capability

Business Silos: redundant infrastructure
and higher cost
Outsource non-core capabilities

Economic Pressures: IT not generally
viewed as a differentiator
reserves but anemic growth

Globalizations: Business acting globally and

Governance & Organization for agility

Standards: At last count over 50 standard
bodies
IT Investments: Investment in improving
IT efficiency, rather than creating new business

opportunities
to upgrade to latest versions
3
Technology Refresh: Business reluctant
The ideal architecture representation of a
typical current state does not cut Representation
it any more
of the
enterprise architecture of an
highly successful IT
organization (Complex and
Expensive)
Enterprise are attempting to
increase revenue (cross sell or
up sell existing customers) and
reduce cost (especially IT)
SOA enables Enterprises to
achieve both these
objectives
Alternate vision is to
consolidate business process
to applications provided by a
single vendor
4
soa
traditional approach
Business Value
Both Business and IT have the same future vision and
have different approaches to get there
business
services
(Business)
Portals
Integration
App Server
Database
COTS packages, etc.
current state
future vision
Process
Driven
Enterprise
Business Priority
infrastructure
services (IT)
Business Complexity
IT Priority
5
SOA’s unique value proposition – Business Solutions
through infrastructure instead of Business Solutions
through applications
Business shall tend to prioritize
business solutions over
infrastructure
soa
Quote to Cash
KM
CDI Solution
Customer Acquisition
Role Based Portal
(workbench)
traditional approach
Business Value
Regulatory
Compliance
BI
Service Delivery
Utility Computing
Data
BPM
Warehouse
Monitoring
ESS
SOA provides IT the ability to
build out the infrastructure while
meeting immediate business
needs
Enterprise Security
SDS
CSS
Collaboration
Portal Front-end
for COTS
Service Management
ESB
Portal Front-end
for Mainframe
Business Complexity
Business Process
Business Solutions
Infrastructure Capabilities
6
Agenda
Industry Background
SOA Blueprint Objectives
SOA Lifecycle & Maturity Model
SOA Reference Architecture
7
SOA Definition and Objectives
SOA is the business operations strategy for leveraging
information to meet their objectives, such as increasing overall
revenue, increasing customer satisfaction, improving product
quality, etc.
To provide leadership in the industry by identifying the end
customers and IT needs
Provide a roadmap for successful adoption of SOA
Identify important business and technology patters of SOA
8
SOA Blueprint deliverables
SOA Blueprint Section
Deliverable
Starting with SOA
SOA Lifecycle, Maturity Model and defining SOA Strategy
SOA Reference Architecture
The proposed end-state architecture
SOA Framework
SOA Methodology similar to Enterprise Architecture Framework
Governance and Organizations
Document various patters and best practices around governance
and organizations
Service Lifecycle
Service definition, deployment and management process including
templates, best practices, patterns, etc.
Appendix
Frequently Asked Questions (FAQs)
Common vocabulary
The SOA Blueprint shall be living document that is constantly updated based on the community experience
9
Intended Audience for the SOA
Blueprint
Business sponsors of IT projects and IT leadership team
responsible for SOA across the Enterprise or LOB
Enterprise Architects who shall be responsible for driving the
vision, roadmap and architecture or each of these
implementations
The Program Management Office so that they can get a better
understanding of how to manage SOA initiatives
The Project teams so that they can get a better understanding of
how to map dependencies and develop a timeline that meets
business expectations
The vendors who shall be providing the products and tools
Standards bodies so that they can get a better understanding
with use cases on how end users plans to leverage technology to
meet their business objectives
10
Agenda
Industry Background
SOA Blueprint Objectives
SOA Lifecycle & Maturity Model
SOA Reference Architecture
11
The three steps of SOA Lifecycle
1. Initiate SOA

Establish the process for getting started

Establish objectives, project teams, timelines, deliverables, etc.
2. Develop Roadmap

Establish SOA Principles

Develop Reference Architecture

Develop SOA roadmap based on business priority
3. Execute SOA Roadmap

Initiate transformation Business and IT by establishing SOA
Governance

Manage Services Portfolio and execute roadmap

Revise and update roadmap on a periodic basis, based on internal
and external environmental changes
12
SOA Lifecycle
Initiate
Initiate SOA
Develop SOA Roadmap
SOA Principles
Reference
Architecture
Execute Plan
Execute SOA Roadmap
Portfolio Management
Business Principles
Business Architecture
BPM, COTS, etc.
Project Objectives
Develop SOA Roadmap
Application Principles
Portal, SO, ES, etc.
Team Members
Technology Principles
Information Arch
MDM, ODS, DW, etc.
Timeline & Deliverables
6-12 weeks
Data Principles
Testing
Infrastructure
Publish
Data
Discover
Project
Management
FTE & PT
Application
Infrastructure Arch
Develop Roadmap
Based on Biz Priorities
Governance
Review and Update Roadmap
13
Organization
Skills Mapping
Understand the SOA Maturity Model enables
enterprises to develop the roadmap to
Following are the three stages
achieve “Future Vision”
of SOA Maturity Model
Phase 1: Develop Web
Applications – demonstrate “quick
wins” to business by rapidly
deploying new business solution by
reusing services

Phase 2: Develop composite
applications such as single view of
the customer or automate integration
points between systems

Phase 3: Automate Business
Processes across the enterprise or
LOB

It is not necessary to exist one
stage to start the next
14
Agenda
Industry Background
SOA Lifecycle & Maturity Model
SOA Blueprint Objectives
SOA Reference Architecture
15
SOA Reference Architecture – “Future
For Version 1.0 the focus of SOA
State Architecture”
Reference Architecture with
three major tiers for providing
business capabilities
Web Application Tier (sometimes also
referred to as the Presentation Tier)
provides the multi-channel web
presence for the enterprise

Service Tier provide service lifecycle
management, service discovery and
composition capability. Also provides
services that cross application
boundary

Application Tier contains the
traditional legacy or mainframe
applications and EAI

16
SOA Reference Architecture
Web Application Tier
Packaged Applications

Industry standard core applications – robust core business logic and data structure

Vanilla Implementation (limit custom changes)
Easier and cheaper to maintain
Easier and cheaper to upgrade or replace

Footprint – Limited to the best of the breed

One standard Implementation Worldwide
Limitations of Packaged Applications

Modification of business process and user interface is not very easy

Most packaged applications are still based on proprietary technology
Difficult to find resources
Upgrades are expensive
Integration is not straight forward
17
SOA Reference Architecture
Web Application Tier
Custom Applications categories
1.
Develop a custom (web) application leveraging an Application Servers
2.
Develop a custom (web) application leveraging a Portal product
3.
Develop a thick client by either using tools based on open standards or proprietary
technology

Focus of this presentation shall be on option 1 & 2
18
SOA Reference Architecture
Web Application Tier
Custom Application Requirements

Provide unified user experience across the web site

Standardize look and feel across all the sites

Create a single point to access all information

Provide only the information the user has access to

Provide a highly reliable, available and scalable environment

Provide user the capability to personalize their pages

Reduce operational cost / TCO
19
SOA Reference Architecture
Web Application Tier: Custom Application
Architecture Approach
Based on SOA that promotes
re-use at multiple levels
Presentation
Provides rapid delivery
capability
Business Delegate
Leverage each product for
what it is good at, example
portal for presentations based
on entitlements
Services
Domain Layer
Directory
Service
App Data
Enable business to combine
multiple services to provide
new capabilities
Legacy
Loosely coupling presentation
from the business logic makes
it reliable and scalable
20
SOA Reference Architecture
Web Application Tier: Custom Application
Framework Components
Framework Components
Description
Data Services, Logging, Exception Handling,
Standard framework components and most IT
Applications Configuration, Monitoring
organizations already have these components
Search Framework
Service leveraged by the Presentation tier for
paginations
Notification Framework
Leverage for any external notification such as eMail, IM,
SMS, etc.
Service Proxy
Service proxy to EJBs, Web Services or any other
external service/protocol
Security Framework consisting of Authentication,
Standard client security framework to integrate with
Authorizations, SSO, Identity Management, Auditing
enterprise security service as well as develop custom
authorization modules for the applications
21
SOA Reference Architecture
Web Application Tier: Custom Application
Framework Components
Dynamic query generation
based on user input
User Interface
xyz
rst
data
data
data
data
data
data
Consistent mechanism for
handling search
Abstract all database access
code from applications
Application
Criteria
List
Search Framework
Query reside in external files
Query
Definition
Query
Definition
Utilities to handle common UI
tasks
Search Framework
22
SOA Reference Architecture
Web Application Tier: Custom Application
Framework Components
One notification client for all
applications
Notification
JMS
Supports Synchronous and
Asynchronous interface to the
notification engine
Notification Engine
Channel
Config.
Template
Channel Handler
eMail
IM
Capabilities to send
notifications to multiple
channels
SMS
Notification Framework
23
SOA Reference Architecture
Web Application Tier: Custom Application
Framework Components
Service Proxy
Presentation Layer
(Business
Delegate)
Service Repository
Service
Target
Service Proxy
GetAddiress EJB Service
GetSupportCasesWSService
AddContact
ESB
EJB
Proxy
WS
Proxy
….
Proxy
EJB
Service
Web
Service
….
Service
Allows services to deployed locally or remotely, transparent to the
presentation layer
24
SOA Reference Architecture
Web Application Tier: Enterprise
Infrastructure Services
Provide standard enterprise infrastructure services

Director Service (LDAP v3.0 or above)

Personal Information Management: Calendar, eMail, Address Book,
etc.

Content Management System: Standardize on one across the
Enterprise/LOB and provide interfaces and best practices

Search: Standardize on a search engine across the Enterprise/LOB
and provide interfaces and best practices
25
SOA Reference Architecture
Web Application Tier: Enterprise Portal
Ent. Portal
Ent. Portal
Cluster
Custom App
COTS
Ent. Srvs
WSRP
Custom App
DB
LDAP
WSRP
COTS
WSRP
Ent. Srvs
Legacy
DB
Current State
LDAP
Legacy
Future State
Users login to a single portal that presents information (portlets)
from multiple sources
26
SOA Reference Architecture
Web Application Tier: Enterprise Portal Example
Available Portlets can reside
either in internal servers or
external providers – all
communication to remote
portlets through Web
Services
x
Welcome, Rhonda Hocker
Wednesday, February 4 2004
BEA Weblogic review
Go
Configure Portal
Employee Self Service
Results
x
BEA Email
From
Subject
Received
Philippe.B…. WLI Strategy
Dale Slaug... Re: SOA Architecture
Yogish Pai
SOA Architecture
02/04/2004
02/03/2004
02/03.2004
Customer
x
Sender
Subject
Date
Size
jk100@...
lara.en…
Remind…
More >>
Friday trip
Request
Birthday Reminder
Sun 2/1
Sun 2/1
Fri 1/30
2K
1K
3K
Ashburn
Tom Ashburn
408-570-8628
Email - IM
Placement of portlets in the
portal will be dynamic and
also configurable by user
Albertson’s 8.1 WLI / WLP
AT&T
Portal 8.1 …
Verizon W.. Platform / Ent..
More >>
Conf #
0192985
0194677
Value
$7.5M
$2M
$15M
Descrfption
Start Date
SFO-BOS-SFO Feb 14
SFO-LHR-SFO Feb 22
BEA News (Factiva)
-
Prudential Selects BEA Systems …
E*Trade Japan builds Linux-based …
Norvergcence Standardizes on BEA...
More >>
27
My Benefits
My Information
My Payroll
My Travel
My Purchasing
Electronic W2
x
x
x
Sales Support
x
Make a reservation >>
x
Go
Name
My Travel
Draft - Folders - Trash
BEA Address Book
x
Major Opportunities
More >>
Yahoo Mail
- LinuxPlanet reviews: BEA Weblogic for Linux…
- BEA Weblogic review forum
- More >>
V
Google Search
Major Opportunities
Customer Contacts
Registry
of existing
portlets
(local &
remote)
x
Productivity
BEA Address Book
BEA Email
BEA Calendar
x
x
x External Sources
BEA news (Factiva)
Industry news
Stock Quotes
Google Search
Yahoo Mail
x
x
x
New functions and
content can be
added on the fly
simply by adding the
remote portlet web
service definition to
the catalog – The
resulting portals can
be continuously
expanded without
affecting current
functions
V
SOA Reference Architecture
Services Tier: Enterprise Service Bus
SLA Monitor
Client App
JMS
Queue
Client App
File
Client App
Dynamic
Message
Transformation
Data Validation
& Invoke
External Service
Dynamic
Message
Transformation
WS
Service Log
Provide Message and Service broker capability
Dynamic message & transformation
Data Validation & invocation of external services
Monitor SLA’s for each of the services
28
Message Broker
JMS
Message Broker
Client App
JMS
WS
CORBA
SOA Reference Architecture
Services Tier: Service Registry
Service
Consumer
Interoperability
Runtime
binding
Service Registry contains
Service descriptions and contract
information
Service
Producer
Supports UDDI
Publish
Configuration and administration
console
Service
Registry
Provide horizontal and vertical
replication capability
29
SOA Reference Architecture
Services Tier: Shared Data Services
Enterprise Information Integration
Database
File
Application
Adapters
LDAP
Provide data modeling capability across multiple sources
Develop query (read & write) across multiple sources (Standards
bodies have so far defined only the read operations – SDO)
Provide data transformation capability
Provide data validation capability
Expose data services to client applications – RMI or Web Services
30
SOA Reference Architecture
SOA Framework
Required to enable rapid development and consists of
following layers

Transformation Layer

Business Logic Layer

Business Data Layer

Integration Layer
Reasons for an SOA Framework

Solid foundation for creating services

Improved productivity

Utilize Off-the-self framework

Don’t need to know the internals of J2EE or object-oriented design
31
SOA Reference Architecture
SOA Framework
Business Benefits of the SOA Framework

Catalyst for adopting SOA

Consistent design and development process across all projects

Repeatability and the ability to guarantee a minimal level of architecture
and design rigor

Improved business agility as a result of having modular solutions that
can be changed easily (often via configuration changes)

Use of software engineering best practices amongst developers with
varying skill levels

More consistent, predictable and better tested solutions

Improved mobility of developers to move from one project to another
32
Mapping SOA Reference Architecture
to the Enterprise SOA Maturity Model
Traditional
Development
Develop Web
Applications
Composite
Applications
Automate
BP
Enterprise Services: Basic services required across the
enterprise. Examples: Directory Service, Content Management,
Search, eMail, Calendar, IM, Discussion Forum, White Board, etc.
Packaged Applications: These are the best of the breed
packaged application that also act as the system of record for
a particular business function.
Custom Applications: These are either built on an
App Server, Portal or proprietary thick client.
Application Framework required to leverage reuse.
Examples: Logging, Exception handling, data services,
application configuration, monitoring, search framework,
notification framework, service proxy, Single Sign-On
Enterprise Portal: Role based portal that
is available 24x7. Provides single point of
entry for all users, multi-channel support,
consistent look and feel, access to business
capabilities based on role.
Enterprise Service Bus: Route services to the appropriate
destination; receive and transmit messages in any protocol, provide
message transformation, routing, validation, auditing, security,
monitoring and reporting services.
Business Process
Manager: Configure
Shared Data
Services: Extract,
and automate business
process. Provide
business users the
capability to modify the
business process &
policies.
Transform & Load (ETL),
Electronic Data
Interchange (EDI),
Enterprise Information
Integration Data Quality
(Matching Engine, Master
Data Management)
Service Registry:
Service registry
containing service
properties such as
service capabilities,
parameters, service
levels, etc.
Enterprise Application
Integration: Traditional
enterprise integration approach.
Provide Application Adapters,
Business Process, Messaging,
Security, etc. capabilities. Mostly
proprietary in nature and
application integration generally
implemented as a point-to-point
integration on a Hub..
Service Manager:
Manage service
lifecycle across the
enterprise.
Business Service
Management: Monitoring,
capacity planning, utility
computing
Enterprise Security: Provide
user authentication,
authorization, identify
management, profile
management, delegated admin,
etc.
Mainframe Application :
Access data via gateways
Legacy Application: Applications that do not have open APIs & are not web based
33
SOA Alliance: SOA
Reference Architecture
Contributors:
Ashok Kumar, Cendant
Jeffery Lamb, Wells Fargo
Tom Mitchell, Wells Fargo
Burc Oral, Dev Atma Technologies
Yogish Pai, BEA Systems
Sankar Ram Sundaresan, HP