+
Service Oriented Architecture
(SOA)
Enterprise Architecture (EA)
Enterprise Service
Bus
(ESB)
Yale Solutions
Design
October 2012
+ Current Integration Challenges
All issues, technical and non-technical need to be addressed in order
to effect positive architecture change across the enterprise.
 Each
team follows unique standards for technology
selection, design, build, and deployment
 Connectivity
is point to point and not reusable
 Projects
are always time bound which forces teams to
make decisions at the project level
 Improvements
happen at the team or project level
2
+ Current Integration Challenges: Results
3
Fortunately there is a proven way forward! It will require a significant
paradigm shift, however.
 Few
assets/services are shared/reused (even within teams)
 Redundancies
may exist (which yield disparate results)
 The
Development teams operate within their respective
domain and are therefore unable to collaborate on
standards
 There
is inconsistent behavior across teams in terms of
solution delivery
 Clients
miss opportunity to benefit from team collaboration
 Separate, discreet
does not scale
application construction and deployment
+ Sample EDS System Connectivity
4
4
+ Definitions Page
What is an Enterprise Service Bus (ESB)?

A secure and robust middleware environment that enables systems to
interoperate independently of technology

An integration facilitator that allows internal and external systems to share
information

Implements SOA through Virtualization and management of service
interactions
What is Service Oriented Architecture (SOA)?

An architecture strategy that drives a close alignment to the business by
deconstructing IT systems into discreet services that perform business
functions

Services communicate via the ESB and may be reused

Can drive architecture disintermediation via the composition of independent
services into mashups or apps

Examples: search, impersonation, login, person lookup, course lookup, etc.
5
+ Why do we need an ESB and SOA?
6
 Systems
no longer connect directly thereby allowing
greater control and enforcement of the following
principles:






Standards
Security
Governance
Reusability
Consistency
Data Integrity
 We
can build and leverage a suite of business services that
can be assembled into composite applications
 Multiple
channels (Web, Portal, Cloud, etc. ) can be
authenticated to access shared services
 Data

synchronization managed through the ESB
Publish/Subscribe queue
+ Additional Benefits and Opportunities

Standardized, Streamlined, and Simplified Architecture



Teams spend less time on complex and redundant architectures
and now focus on business process, reuse, and quality
ITS team focus, collaboration, and consistency

SOA practices enable ITS to shift focus to becoming a ‘Change
Ready’ and ‘Change Enabled’ organization

Teams collaborate to build shared services vs. siloed applications

Individual customizations replaced by standardized and
governed practices
Improved Customer Service

Client benefits range from helping define business services and
processes, to being able to consume shared services

ITS’ ability to adapt to changing business needs enables positive
and consistent business process improvement

Clients move from being ‘customers’ to ‘partners’
7
+Cost/Relationship Savings Opportunities
8
One time

Service Reuse

Maintenance reduced through consolidation and reduced redundancy of
business functionality

Pre-built services pulled ‘off the shelf’ to compose applications thereby
reducing the time to build and deploy (same as COTS)
Recurring

Operational costs


Improved System Quality


Maintenance and support of services
Deployed services are certified thereby reducing defect remediation
Improved Data Quality

Redundant data access minimized and replaced by standardized data services
that can be reused by authorized personnel
+ Basic “Service Based” Architecture
The initial SOA architecture includes the creation of reusable interface services
that connect disparate systems. Enables initial system/data decoupling.
Systems
CIMS
Teaching Fellows
Med Apps
Users
Services
Services (Global or Local)
Transport
Layer
Enterprise Service Bus
Services
HR
DW
Banner
9
+ Future SOA Environment (Sample)
10
New applications will take full advantage of composite applications via
services. User interface is completely decoupled from the data source.
Mobile
Cloud
Vendors
Web
Access
Vendor
Packages
ESB
Data
Service
DW
Data
Service
Banner
Data
Service
HR
Data
Service
Standard
access
mechanism
Alumni
System of
Record
+ Data Synchronization with Queues
11
Change events are published to a common transient queue where
multiple applications can subscribe to the same topic
App 1
App 2
App 3
+
The SOA Imperative:
“Build-to-Change” versus
“Build-to-Last”
12
+ SOA Services Strategy and Delivery
SOA lifecycle management moves us from a linear thinking
mode to a circular or evolutionary process.
Start
Evaluate,
Enhance,
De-commission
Identify
and
Define
Governance
Governance
Monitor
Develop/
Modify
Test/
Deploy
13
+ Community / ITS Relationship
 The
alignment between the community and ITS can
be improved and facilitated through a well-defined
and governed Enterprise Architecture process
 Enterprise
Architecture is a Critical Success Factor
for the entire Yale community to achieve their
expected results
14
+ Enterprise Architecture
The ESB and SOA technologies are enablers: The end goal is managed
Enterprise Architecture.
 Links
ITS to the Yale Community by translating
Yale’s vision and strategy into scalable and
adaptable technology principles and models
 Manages

current and future state technology vision
Enables a ‘going in position’ when evaluating
software, vendors, or new projects
 Manages
risk and cost through standardization,
reusability, and governance
 Consistently
maintains a view at the enterprise
level to ensure efficient utilization and
orchestration of all resources
15
+ Enterprise Architecture
Enterprise architecture principles drive a global perspective within an
organization across business, data, application, and technology domains.
Business
Architecture
Data
Architecture
• Strategy
• Process
• Services
• Organization
• Entities
• Sources
• Access
• Governance
Applications
Architecture
Technology
Architecture
• Standards
• Platforms
• Integration
• Governance
• Frameworks
• Infrastructure
• Operations
• Governance
16
+ Starting with a Mission
17
The Mission should define the strategy and all activities should map
back and fully support it
Data Architecture
Define, support, secure, and maintain the
types, sources, and relationships of data
necessary to enable the goals of the
organization in a way that is complete,
consistent, trusted, and understandable by
all constituents.
17
+ Why Focus on Architecture?
Business
Strategy
Enterprise
Architecture
18
IT
Strategy
 Enterprise Architecture provides the tight cohesion and loose coupling
between IT and Business strategies
 It is the ‘glue’ that ties together Business and IT strategies and enables
them to drive each other
 Enterprise Architecture can provide the technology innovation engine
that enables ITS to better serve business partners
+ Responding to Business Change via
Architecture
Managing Change is
Key Business Driver
Change is Constant
Benefits of SOA
Respond Better, Faster,
Cheaper to Change
Customer Needs
Align ITS with Business
SaaS / PaaS Solutions
Agility, Flexibility
Vendor Solutions
Reusability
ITIL
Improved Quality
Legacy System Support
Platform, Technology
Integration across all
Independence
environments
Reduced Redundancy
19
+
The SOA Imperative:
“Build-to-Change” versus
“Build-to-Last”
20
+ ‘Change Ready’ Organization
21
 Flexibility
 Speed
 Agility
 Adaptability
 Responsiveness
 Thoughtfulness
 Innovation
 Collaboration
 Rapid Evolution
 How do we accomplish this?
Organizational alignment
Tools
Architecture
Processes
Mind-set
Commitment
...Leveraging our Strengths
+ Why focus on Change Readiness now?
Strong need to integrate disparate environments to ensure consistency
and data synchronization across all platforms.
 Key Building Blocks and Drivers are in-place or underway
 ITIL
 Relatively new organizational model
 Student Information Systems (YaleBluebook, Leep Frog, etc.)
 Cloud Vendor proliferation (SalesForce, ServiceNow, QB, etc.)
 Rethinking ERP environment
 DARCY / Blackbaud
 Identity and Access Management Initiative
22
+ What will this do for us???
 If we are successful, we will become
 Able to adjust to any newer technology or business trends
more rapidly and calmly
 Able to integrate both internal and external systems and data
in a consistent manner that models our standards
 Able to drive more effective and consistent technology
decisions through a well thought out strategic architecture
plan
 More effective at collaboration between teams and with our
customers
 Better service providers to our customers
23
+ Current Services Status
Domain
System
Student
information
Banner
Student
information
24
Development In test
completed environment
tbd 9/15/2012
Production Initial Date Consumers
tbd Law, SOM tbd tbd tbd tbd At a minimum question and answer data, and tbd scores
tbd tbd Law, SOM,
Yale
College,
other prof
schools? Term code, most likely PIDM but At a minimum should include: names, all ID's, 9/15/2012 possibly netid, Swid, Sid, or UPI email alias, preferred first name, ethnicity,
as well
degree(s), school(s), class year(s), major(s).
TBD whether this should also include address
information
tbd tbd Law, SOM
Student PIDM(s)
TBD, but likely school name, degree and
major
tbd tbd tbd SOM TBD, but at a minimum: term
code, school of affiliation * Law School may need to be
able to query by year-of-study ** SoM may need to be able to
query by "degree program"; we
need clarity on this term
TBD, unknown whether this service should
simply return business keys or all student
information in one fell swoop
Partial (Major, tbd School, Cohort)
on 9/15/2012 tbd Law, SOM Subdomain Service
name
Course
Get course
information
Description Parameters
Data elements returned
Banner
Course
Search
courses
Returns the
set of
courses
matching the
criteria
passed in
TBD, but likely a combination of TBD, unknown whether this service should
many fields such as term code, simply return business keys or all course
owning school and/or department, information in one fell swoop
subject code, course number,
keyword, meeting day and/or
time slot, whether or not the
course has a final exam
Student
information
Banner
Course
Get
evaluation
data on a
particular
course
subject code, course number,
possibly term/year
Student
information
Banner
Student
Get current
student
information
Student
information
Banner
Student
Get prior
educational
information
Student
information
system
Banner
Student
Search
students
Returns the
set of
evaluation
data for the
specified
course
Returns the
set of
student
information
for the
student(s)
requested
Returns prior
education
data for the
set of
students
requested
Returns the
set of
students
matching the
criteria
passed in
Returns the Term code, subject code, course Short title, long title, long description, school
set of course number
and department of ownership, sectional
information
meeting times and instructor assignments
for the
course(s)
passed in
+ Change Management for SOA & EA
ITS needs to embrace five key aspects of change management as we move
forward toward general adoption.
Communications
Governance
Sponsorship
Training
Yale
Adoption
of SOA &
EA
Organization
25
26
Thank you for your time!
27
Appendix