berkeley has been writing web services for the last 8 years, but they were not structured, not...
TRANSCRIPT
• Berkeley has been writing web services for the last 8 years, but they were not structured, not documented, not inventoried, not reviewed, and limitedly shared. They were done on demand, not part of a bigger plan.
• SOA is the next step for us. Our hope is SOA along with building a “Campus IT Community” and Campus Developer Support will enable a) FLEXIBILITY by allowing IT-by-composition,b) Composition over reinvention enabling SPEED,c) Thoughtful methodology, tool, and platform selection enable QUALITY.
From Services to SOA at BerkeleyCSG - Sept 25, 2008
From Services to SOA at BerkeleyCSG - Sept 25, 2008
THE SOFTWARE GOAL: Quality, Speed, Flexibility.
THE TRENDS:Increasingly complex and changing business processes.
Increasingly tech savvy business partners.
Increase dept/unit development of mission critical systems.
Decrease in resources while increase in IT demands.
THE CHALLENGE : How to get UC Berkeley from a set of unorganized,
unstructured web services to SOA?
We need help. We don’t have the right experience or enough of the right resources.
Berkeley became Kuali Student Founder July, 2007.
We Got FIRST RATE HelpCSG - Sept 25, 2008
UCB gave 2 of 4 Central App architects to Kuali ...We benefit from the effort of 12 architects & several
senior java developers.
Of special note:Leo Fermin, UBC Scot Gibson, UMd Wil Johnson, FSU
For the next phase we are looking for developers:• At least 3 years Java experience (Sun Java certification an asset).
• Familiarity with Spring IOC and AOP.
• Familiarity with ORM concepts and JPA in particular
(preferably the hibernate implementation).
• Advantageous if they have worked with Eclipse and SVN.
• Knowledge of XML, XSD, WSDL, SOAP.
From Services to SOA By Leveraging KualiKS - July, 2007
Kuali Student is...
• Being developed through a community source process over 5 years.
• Will deliver through a Standards-based (open, widely accepted, adopted), Service-oriented architecture utilizing web services.
• Leverages Open Source Technology (Open source software stack & java).
• Modular and relies on Component Abstraction of Business Processes & Rules and Presentation & Data layers.
• Rules & logic will not be in code (use rules/workflow engines).
• Tier 1 Apps (first 5 years) include: Learning Unit Management, Enrollment, Person Identity, Student Financials, Program Audit & Evaluation, Limited Concierge, Application connectors, Configuration application
• Tier 2 Apps include: Admissions, Scheduling, Financial Aid, Concierge
KS Services – Release 1 LUM
*Authentication Service Learning Result Catalog Service
*Authorization Service LUI Person Relation Service
AZ Group Service LU Service
*Business Rules Management Service Organization Service
Communication Service Person Service
Contact Service Resource Service
Deprecated Service Descriptions Rule Repository Service
*Dictionary Service *Search Service
Fact Finder Service *Workflow Service
Learning Objective Service
• * Business Agnostic Services, service contracts close to final, coding started. “Developers got anxious”.
• ** Service performance a concern so QA team has been working on enrollment service for Enrollment Module that has not be officially started.
KS - Jan 1, 2008
Technical ArchitectureWeb Services Stack Recommendations
- uPortal
- Apache CXF/Sun Metro- CAS, Acegi- Kuali Id Mgmt (KIM)- JBoss Drools
- Apache Derby*Certified MySQL & Oracle
- Apache ServiceMix- Sun OpenESB-- Kuali Enterprise Workflow (KEW)
- KRice ?- KS BRMS
Phase I Recommendations found at:
http://www.kuali.org/assets/pdf/KS+Phase+I+Recommendations+v2.0.pdf
Kuali Student Technical ArchitectureWeb Services Stack Recommendations
KS - Jan 1, 2008
KS & Rice Planned AlignmentUI
Middleware
EclipseWorkbench
MappingFrameworks
TechnologyStack
Google Web Toolkit uPortal 3.0
Id Mgmt:KIM
Workflow:KEW
Rules:BRMS
Dictionary, Search:KNS
Code Mgmt:Subversion
Build:Maven
Unit Test:JUnit
JPA:Hibernate
JAXB JAX-WS
DB:Derby
Service Eng:CXF/Metro
Servlet:Tomcat
ESB:ServiceMix
Rules Eng:Drools
KS & Rice Planned Alignment
KS - Jan 1, 2008
SOA Challenges at Berkeley
• Semantic Interoperability – We don’t speak the same language (GPA, Student Registered/Enrolled, Chart String)
• Culture NIH (NOT INVENTED HERE)/NUMC (NOT UNDER MY CONTROL), Architecture/Technical Religious wars (.net/java, REST/SOAP).
• Business Processes Non-standard or Non-alignment (examples-UG & Grad Adm applic, grade submission)
• Funding and Resourcing Models
• Staffing• New Skill Sets (BusAnalyst, SOA, UI experts, )
• A fresh look
• Back Filling Key Positions
• BUSINESS ANALYSTS are rarer than we thought
• To succeed it is not about “central resources”,
it is about “campus resources”.
CSG - Sept 25, 2008
Campus Developer’s Community & Support
CSG - Sept 25, 2008
• Process and methodology• Toolsets• Technology Stacks• Components & Services• Automated Test Frameworks• Automated Deployment Scripts• Training (“How to” Websites, Book Club, Recommended
Readings, Online courses, Pilot Projects, Mentors, Internships,
ITAC)
• Prototypes• Code review• Security audit
SOA Challenges at Berkeley
• Immature Technologies - (Or did not live up to the vision). BPEL
• SOA is not about a Particular Technology - Processes
• SOA has a lot of pieces, development is in pieces - What will bring this all together?
• SOA is a different way to design systems - Loose coupling
• Loose coupling vs Performance – Example Enrollment- Communication Synchronous (Tight) vs Asynchronous (Loose)- Transactionality Two phase commit (Tight) vs Compensation
(Loose)
• Implementation Readiness• Governance
• Resources (Where are all the Business Analysts???)
• Interfaces New and Old
• Will the vendors get there? (Parviz Dousti– CMU)
CSG - Sept 25, 2008
Biggest Challenge
• Getting out of our rut – Taking several steps back
• How we do our business.
What are we really trying to achieve?
• How we develop our systems.
How is a SOA system design different?
• Our new roles. Who does what?
CSG - Sept 25, 2008
SOA Closing Thought…. Your Thoughts?
"In theory there is no difference between
theory and practice.
But, in practice, there is.“
Yogi Berra
CSG - Sept 25, 2008