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NEXOF-RA. V Grids@Work: October 2008 Mike Fisher, BT Innovate. Outline. NESSI: a European Technology Platform The NESSI Holistic Model NEXOF - NESSI Open Framework NEXOF-RA: NEXOF Reference Architecture. Why Services?. “Service is something used but not owned”
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NEXOF-RA V Grids@Work: October 2008 Mike Fisher, BT Innovate
Outline NESSI: a European Technology Platform The NESSI Holistic Model NEXOF - NESSI Open Framework NEXOF-RA: NEXOF Reference Architecture
Why Services? “Service is something used but not owned” Lower the risks for customers and improve value and reliability Increase process flexibility for businesses as well as public administrations Recognise complex world environments, and co-operate on standards, so the end-user value can be created for a huge number of people NESSI is about transforming the EU economy through Service Oriented business models
NESSI ETP European Technology Platform: Networked European Software and Services Initiative NESSI aims to provide a unified view for European research in Services Architectures and Software Infrastructures ~20 partners, > 300 members Today, NESSI partners represent 1.7 Million strong workforce and 490 B€ in revenues In US, SRII launched in March 2007 (www.thesrii.org)
Changes in the Internet Services Process Semantic Services For Users Citizens and Business Abstraction Middleware Grid Virtualization 2015 USERS at the Centre Computers at the Edge Hardware Network Devices «Internet of Services » 2007 WEB 2.0 1990 1960 Internet Specialised networks Computer at the Centre USERS at the Edge Future Internet Ambient Intelligence Ubiquitous SemanticTrusted Platforms
Outline NESSI: a European Technology Platform The NESSI Holistic Model NEXOF - NESSI Open Framework NEXOF-RA: NEXOF Reference Architecture
NESSI Holistic View EU Economy Business Services Trust - Dependability Comprehensive View Business Domain 1 Business Domain 2 Business Domain n NESSILandscape Cross business Collaborations (Business level Services) NESSI Adoption Practices and Usages Regulatory Governance Architecture and Engineering Core Services Semantic Layer Security Interoperability Management Services NESSI Framework Service Integration Layer Infrastructure Layer Open Standards - Open Source - Quality - Connectivity - Federation
Outline NESSI: a European Technology Platform The NESSI Holistic Model NEXOF - NESSI Open Framework NEXOF-RA: NEXOF Reference Architecture
What is NEXOF? • The NESSI Open Framework (NEXOF) is a coherent and consistent open service framework, ranging from the infrastructure up to the interfaces with the end users, leveraging research in the area of service-based systems to consolidate and trigger innovation in service-oriented economies
“The Independence Principle” Size Domain Technology NEXOF main concepts NESSI Open Service Framework Open Reference Model (ORM) Open Reference Architecture (ORA) Open Reference Implementation (ORI) Conformance Test Suite
NEXOF Functional View RequirementsCapture SLA@SOI Engineering tools offered asservices SOA4ALL Service consumers Interaction Services End user Interface ContextModelling RESERVOIR MASTER Consumer Adaptation Mapping users perspectives to business/Integration Context Handling EzWeb KnowledgeModelling SVNModeling BPM view Business Process Execution Information Services SVN LifecycleManagement Business ProcessModeling “System” Platform Composition Service Coordination Mediation SLA Negotiation Service Discovery Service Platform SBS/SBAModelling ServiceCommunication Service Service Registration LifecycleManagement ServiceExecution Service Modelling Reasoning Integration Services External Services Native Services AbstractedInfrastructure Infrastructure and DataAbstraction FormalLanguages Monitoring Infrastructure Modelling Infrastructure Data Management ResourcesManagement
Outline NESSI: a European Technology Platform The NESSI Holistic Model NEXOF - NESSI Open Framework NEXOF-RA: NEXOF Reference Architecture
NEXOF-RA • NEXOF-RA is a step in the process of building and creating the conditions for the adoption of the whole of Open Service Framework • Scope is the Open Reference Model and Open Reference Architecture • The aim is that the RA will be built through consensus within the NESSI Community, validated by the NSPs and widely adopted to support the European Service Economy • Proof of concept implementations
NEXOF-RA Community “whoever is committed” Group 2 NEXOF-RA Drives Process Collect & evaluate input Investigate alternatives Write documents Advisors & Promoters Advisory boards & SC Input & Validate Topics & Applicability “Strategic Contributors” NSP, key projects Create input Collaborate in process “Adopters” NESSI Members ++ Adopt architecture “Contributors” NWGs, other projects, other parties Create input Review drafts Investigation Team NEXOF-RA + Strategic Contributors Collect & evaluate input Investigate alternatives Write documents Group 1
Investigation Topics • First Call Topics (June 2008) • Service Description • Design Time Service Composition • Service Discovery • Interoperability of Message-Based Service Interaction • Declarative Authoring Language for User Interfaces • Context Model and Universal APIs • Definition of Infrastructure Services • Dynamic Identity Management in SOA • Scalable Approaches to Service Oriented Infrastructures • High Availability for Multi-tier Architectures
Conclusions • NEXOF-RA aims to standardise the way services are built, offered and consumed. • The Reference Architecture should be defined in order to allow any business domain, size and technologies • Implementing a Reference Architecture is not a single shot • Implementing a Reference Architecture requires a large community with contributions from many sources. • 1st set of Investigation Teams kickoff: • 20-21 October 2008 • strong interest, large number of committed contributors • 2nd call coming soon… (December 2008) www.nexof-ra.eu