معماری سرویس گرا (4)

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Service Oriented Architecture Lecture 5: High Level Reference Architecture Part 2 95-843: Service Oriented Architecture Material taken from 1 Master of Information System IBM CMU Ref. Architecture Document 

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High Level SOA Reference Architecture * These slides outline the document provide by IBM to CMU to guide CMU’s development of a Student Service Suite (S3) SOA. * Work on this documented was completed in March of 2008. * In this course, we will use this document as a case study in SOA design. * See Blackboard’s Course Documents section. 95-843: Service Oriented Architecture Material taken from 2 Master of Information System IBM CMU Ref. Architecture Document 

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Outline * Enterprise view * IT Systems View ¢ Middleware view * Solution stack view * SOMA 3.1 95-843: Service Oriented Architecture Material taken from 3 Master of Information System IBM CMU Ref. Architecture Document Management 

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Reference Architecture Enterprise View * Business participants from both inside and outside the organization ٠ Delivery channels * Business services represent services the enterprise wants to expose to customers, partners and internal users (identified by SOMA) ¢ EIS bulk of data and logic * ESB routing, protocol mediation, and transformation 95-843: Service Oriented Architecture Material taken from Master of Information System IBMCMU Ref. Architecture Document 4 Management 

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Enterprise View عام عع ‎Bares‏ ‏ری اه مرا وعد سا ‎Participants‏ Technical ‏م‎ ۱۳ ‏اه‎ ‎Technolgy 95-843: Service Oriented Architecture Material taken from 5 ‘Master of Information System IBM CMU Ref. Architecture Document Management 

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Reference Architecture IT Systems View (1) ٠ Technical overview of the architecture ¢ Business as usual elements plus SOA related elements * Gateways (security & manageability) ¢ ESB (adapters, queues, brokers) ۰ Registries (Several types) Service registry for service metadata LDAP registry for identities, access policies, certificates, configuration information 95-843: Service Oriented Architecture Material taken from 6 Master of Information System IBM CMU Ref. Architecture Document Management 

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Reference Architecture IT Systems View (2) ٠ Information services to provide information to consumers in a standard format despite how or where it might be stored * Process Services provide the ability to compose services together and choreograph their behavior to carry out business processes * Security Services are enhanced to meet SOA requirements ¢ SOA related development tools are important but not shown 95-843: Service Oriented Architecture Material taken from 7 Master of Information System IBM CMU Ref. Architecture Document Management 

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IT Systems View 95-843: Service Oriented Architecture Material taken from ‘Master of Information System IBM CMU Ref. Architecture Document Management 

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Reference Architecture Middleware View (1) * Business Application Services are at the core (fundamental & repeatable business tasks & identified by SOMA) * Tool support for this layer: WebSphere app server JBOSS, Glassfish, etc... 95-843: Service Oriented Architecture Material taken from 9 Master of Information System Bi IM CMU Ref, Architecture Document 

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Reference Architecture Middleware View (2) * Access Services Layer Dedicated to integrating existing applications and functions into an SOA. * Tool Support of this layer: WebSphere Adapters BEA adapters Sun SeeBeyond Adapters... * Adapters implemented with J2EE Connector Architecture (JCA) 95-843: Service Oriented Architecture Material taken from 10 - Master of Information System IBM CMU Ref. Architecture Document 

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Some Notes on JCA ¢ An EIS includes ERP systems, legacy systems, mainframe database and transaction processing systems. ¢ Aresource adapter is written for the EIS. ¢ The adapter must communicate with the container and clients. ٠ JCA defines system contracts between the application server and resource adapters. * JCA defines the client API of the resource adapter. ¢ Aresource adapter is analogous to a JDBC driver. 95-843: Service Oriented Architecture ‏سس‎ ‎Master of information System IBM CMU Ref. Architecture Documente2 Management 

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Reference Architecture Middleware View (3) * Partner Services Layer Can be viewed as a special case of interaction services - representing the integration of external entities * Government services * Other higher education services, etc. 95-843: Service Oriented Architecture Material taken from 12 Master of Information System IBM CMU Ref. Architecture Document Management 

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Reference Architecture Middleware View (4) ٠ Interaction Services Layer - Captures the logic of presentation to the entities external to CMU - Web Frameworks, e.g., struts, JSF, Ruby on Rails, provide a configurable sequence flow * Tool Support for this layer: IBM WebSphere Portal Server JBOSS Portal Vignette (industry leading implementation of JSR-168 Web Services for Remote Portlet WSRP) Apache JetSpeed, JSF, Spring Framework, etc... 95-843: Service Oriented Architecture Material taken from 13 Master of Information System IBM CMU Ref. Architecture Document Management 

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Reference Architecture Middleware View (5) ۰ Process Services Layer Captures process flows and business rules. * Tool Support: - IBM WebSphere Process Server (SCA and BPEL) - Apache Tuscany (SCA, SDO and BPEL) - Active BPEL - Glassfish - Oracle Business Rules using RETE rules engine - IBM bought ILOG and now has a rules engine - Redhat DROOLS 95-843: Service Oriented Architecture Material taken from Master of information System IBM CMU Ref. architecture Document Management 

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Business Process Using a Rules Engine Business Process Rules centralize Flow knowledge Facts Results 95-843: Service Oriented Architecture ۰ Material taken from Master of Information System IBM CMU Ref. Architecture Document ‘Management. 

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Reference Architecture Middleware View (6) ٠ Information Services Layer Provide access to the persistent data of the business Provide access to business intelligence * Tool support includes: Oracle RDBMS IBM DB2 Apache Derby MySQL Ingres DBMS (open source) 95-843: Service Oriented Architecture ‏سس‎ as Master of Information System IBM CMU Ref. Architecture Document Management 

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Reference Architecture Middleware View (7) ٠ ESB delivers all interconnectivity capabilities * Transport services, Event services and Mediation services (routing and transformation,logging,auditing) * The ESB is a silent partner, transparent to services * Tool Support includes: IBM WebSphere ESB TIBCO ActiveMatrix JBOSS ESB Apache ServiceMix, etc... * Registries are included in this layer. * Tools include: IBM WebSphere Service Registry and Repository BEA AquaLogic Registry and Repository UDDI) etc... 95-843: Service Oriented Architecture Material taken from a7 ‘Master of Information System IBM CMU Ref. Architecture Document Management 

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Reference Architecture Middleware View (8) Development Service Layer Business analysts need modeling tools. Software architects need to model data, flows, and system interactions. Software developers need to build business logic Tools include: IBM Rational Software Architect IBM Rational Application Developer Eclipse Web Tools Platform Netbeans IDE (J2EE, Ruby,..) BEA workshop for WebLogic Jboss developer suite, etc... BPEL Source Editors IBM WebSphere Integration Developer Eclipse BPEL designer plug-in Netbeans, etc. 95-843: Service Oriented Architecture Material taken from 18 Master of Information System IBM CMU Ref. Architecture Document Management 

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Reference Architecture Middleware View (9) IT Services Management Layer monitors and manages deployed services. Tools include: IBM WebSphere Business Monitor BEA AquaLogic BPM Sun SeeBeyond, et: Infrastructure Services Layer (Security, efficiency, integrity, balanced workload, etc..) Tools include: IBM Tivoli Composite Application Manager (ITCAM) IBM Tivoli Identity Manager (TIM) IBM Tivoli Access Manager (TAM) - security policies and authorization BEA AquaLogic Enterprise Security Sun Java System Access Manager 95-843: Service Oriented Architecture Material taken from Master of Information System IBM CMU Ref. Architecture Document Management 

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Reference Architecture Middleware View (10) * Infrastrcture Services Layer (continued) User Registries: Tools Include: IBM Tivoli Directory Server (LDAP-compliant) Microsoft Active Directory (LDAP-compliant) Novel eDirectory (LDAP-compliant) OpenLDAP, etc... 95-843: Service Oriented Architecture ۰ Material taken from 20 ‘Master of Information System IBM CMU Ref. Architecture Document ‘Management. 

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Reference Architecture Middleware View (11) Business Innovation & Optimization Services Layer Business design tools Tools include: IBM WebSphere Business Modeler Model to UML or BPEL Microsoft Visio MagicDraw Sun SeeBeyond elnsight Process manager Business rules management Tools include: IBM Websphere process server Drools Jboss Rules, etc.. 95-843: Service Oriented Architecture Material taken from Master of Information System IBM CMU Ref. Architecture Document ‘Management. 

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Middleware View 95-843: Service Oriented Architecture ۰ Material taken from ‘Master of Information System IBM CMU Ref. Architecture Document ‘Management. 

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Solution Stack View رز سس تک ‎Hone rier‏ © 95-843: Service Oriented Architecture Material taken from Master of Information System IBM CMU Ref. Architecture Document ‘Management. 

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SOMA(1) * The Service Oriented Modeling and Architecture methodology - is used to identify candidate services. - provides guidance on the degree of service granularity. - may be compared with the OASIS SOA Adoption Blueprint - or Microsoft Motion 95-843: Service Oriented Architecture Material taken from Master of Information System IBM CMU Ref. Architecture Document Management 

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SOMA 3.1 Service Oriented Modeling and Architecture 95-843: Service Oriented Architecture Material taken from ‘Master of Information System IBM CMU Ref. Architecture Document Management