Service Oriented Service Oriented ArchitectureArchitecture

Instructor: Dr. Bahram Instructor: Dr. Bahram KhaliliKhalili

Prepared by Kelly S. French

What is Service What is Service Oriented Architecture?Oriented Architecture?

SOA focuses on integration between SOA focuses on integration between heterogeneous platforms by using standards heterogeneous platforms by using standards for service definition, location, and for service definition, location, and invocation. It functions as a way to form a invocation. It functions as a way to form a distributed system through composition such distributed system through composition such as using existing legacy apps while as using existing legacy apps while coordinating the availability, access, and coordinating the availability, access, and consumption of the provided services. consumption of the provided services.

ConceptsConcepts

ConsumerConsumer ProviderProvider BrokerBroker ServiceService

GoalsGoals

Flexible integration between Flexible integration between different platformsdifferent platforms

Backwards compatible for Backwards compatible for existing environments and existing environments and applicationsapplications

Support different aggregation Support different aggregation approaches, i.e. Layered and/or approaches, i.e. Layered and/or FractalFractal

CharacteristicsCharacteristics

Interface definitionInterface definition

– Platform-independentPlatform-independent

– Self-describing Self-describing

RegistrationRegistration

– Service availability Service availability

– Public or privatePublic or private

Quality of Service attributesQuality of Service attributes

– SecuritySecurity

– ReliabilityReliability

TechnologiesTechnologies

Web Services Description language Web Services Description language (WSDL)(WSDL)

Universal Description Definition and Universal Description Definition and Integration (UDDI)Integration (UDDI)

Simple Object Access Protocol Simple Object Access Protocol (SOAP)(SOAP)

ExamplesExamples

J2EEJ2EE .NET.NET DCOMDCOM

Companies & ProductsCompanies & Products

IBM (WebSphere)IBM (WebSphere) Oracle (WebLogic)Oracle (WebLogic) Microsoft (DCOM and .NET)Microsoft (DCOM and .NET) Sun Microsystems (Java)Sun Microsystems (Java)

Past and FuturePast and Future

CORBACORBA DCOMDCOM

.Net.Net MonoMono

ReferencesReferences

““What is service-oriented What is service-oriented architecture?” by Raghu R. Kodaliarchitecture?” by Raghu R. Kodali

– ((http://www.javaworld.com/javaworld/jw-0http://www.javaworld.com/javaworld/jw-06-2005/jw-0613-soa.html6-2005/jw-0613-soa.html))

““Service-oriented modeling and Service-oriented modeling and architecture” by Dr. Ali Arsanjaniarchitecture” by Dr. Ali Arsanjani

– (http://www.ibm.com/developerworks/we(http://www.ibm.com/developerworks/webservices/library/ws-soa-design1/?S_TACbservices/library/ws-soa-design1/?S_TACT=108AU73W&S_CMP=socialT=108AU73W&S_CMP=social) )

QuestionsQuestions

Service Oriented Service Oriented ArchitectureArchitecture

Presented by Kelly S. FrenchPresented by Kelly S. French