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CSG SOA Panel.

CSG SOA Panel.

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  • 1. From Services to SOA at Berkeley CSG - Sept 25, 2008
    • silo-ed development
    • opaque orchestration
    • not easily pluggable
    • not reusable
    “ Sure, we can have that special-order widget for you in about six months!”
  • 2.
    • Trend: Increasingly complex and changing business processes.
    • Trend: Increasingly tech savvy business partners.
    • Trend: Increase dept/unit development of mission critical systems.
    • Trend: Decrease in resources while increase in IT demands.
    From Services to SOA at Berkeley CSG - Sept 25, 2008
  • 3.
    • 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.
    • 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 Berkeley CSG - Sept 25, 2008
  • 4. From Services to SOA at Berkeley CSG - Sept 25, 2008 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.
  • 5. We Got FIRST RATE Help CSG - Sept 25, 2008
    • UCB gave up 2 of the 4 Central App architects ...
    • We got 12 and a bunch of Senior 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.
  • 6. From Services to SOA at Berkeley CSG - Sept 25, 2008
    • Kuali Student is...
    • a modular, open source, standards-based,
    • being developed through a community source process over a 5 year period,
    • will be delivered through a service-oriented architecture and web services,
    • rules & logic not in code (use rules/workflow engines).
  • 7. Kuali Student Functional Scope Tier 1 Tier 2 - Learning Unit Management -Admissions (LUM)‏ -Scheduling - Person Identity (PI)‏ -Financial Aid - Enrollment (ENR)‏ -Concierge - Program Audit & Evaluation (PA&E)‏ - Student Financials (SFS)‏ - Concierge – limited - Application connectors - Configuration application KS - Jan 1, 2008
  • 8. KS - Jan 1, 2008
    • Service Oriented Architecture
        • SOA methodology
        • Web services
      • Component Abstraction
        • Business processes and business rules
        • Presentation and data layers
      • Leverage Open Source Technology
        • Open source software stack
        • Java as the language of choice
      • Standards Based Architecture
        • Open, widely accepted & adopted
    KS Technical Guiding Principles
  • 9. Technical Architecture Web 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 Technical Architecture Web Services Stack Recommendations KS - Jan 1, 2008
  • 10. KS & Rice Planned Alignment UI Middleware Eclipse Workbench Mapping Frameworks Technology Stack 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
  • 11. 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)
    • Resources and Funding 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
  • 12. 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
  • 13. SOA Challenges at Berkeley
    • Immature Technologies - (Or did not live up to the vision). BPEL
    • SOA is not about a Particular Technology - Process
    • 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
    • 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
  • 14. Loose Coupling to the n th Degree Forms of Loose Coupling Tight Loose - Physical connections Point to Point Via mediator - Communication style Synchronous Asynchronous - Data model types Common complex Simple common - Interaction Central control Distributed control - Binding Static Dynamic - Interaction Pattern Navigation Complex object trees Data-centric, Self-contained msg - Control of process logic Central Distributed - Platform Dependencies Strong dependencies Platform independent - Transactionality 2PC (two phase commit) Compensation - Deployment Simultaneous At different times - Versioning Explicit upgrades Implicit upgrades
        • "In theory there is no difference between theory and practice. But, in practice, there is.“ Yogi Berra
    CSG - Sept 25, 2008
  • 15. 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
  • 16. 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
  • 17.