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Net-Enabled Test Environment: a Federated Approach to Establishing an Inter-agency Test Environment for Net-Centric Information Sharing
The document discusses an approach to improving information sharing for Next Generation air transportation systems (NextGen). It outlines challenges with current information sharing, and proposes a semantic service-oriented architecture approach using ontologies, web services, and a federated infrastructure. This would include developing shared understandings through domain ontologies, a technical capabilities stack to enable discovery and access, and an interagency test environment to demonstrate and validate the approach. The goal is to specify services that can drive acquisition of interoperable systems to support information exchange.
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Net-Enabled Test Environment: a Federated Approach to Establishing an Inter-agency Test Environment for Net-Centric Information Sharing
- 1. A Semantic SOAApproach to NextGen Information Sharing Wen Zhu, Alion Science and Technology Germaine Forbes, SAF/ CIO A6 / JPDO 26 Jan 2012 1
- 2. Agenda • Mission • NextGenInformation Sharing Challenges • Information Sharing Approach – Process – Technical Capabilities – Infrastructure • Demonstrations • Putting It Together • Way Ahead 2
- 3. Mission Net-CentricOperations Division (NCOD) leads the Joint Planning and Development Office (JPDO), agency partners, and industry to realize information sharing capabilities to improve situational awareness, enhance decision making, and facilitate collaboration. Information Network Demonstration Experimentation Exchange Infrastructure Capability and Architecture, Measurement Process, Ontology Outreach 3
- 4. Big Picture • Net-CentricOperations Division (NCOD) promotes policies and strategies for information sharing and coordinate investment and development of network-enhancing capabilities – Work to make the information understandable by: • Defining an ontology (or shared vocabulary) • Documenting required information exchanges • Provisioning services to improve discoverability, re-use, understandability – Work to make the information discoverable and accessible through • Service registry, Semantic Metadata Catalog and Portal – Help to identify accurate and timely data • Identifying Authoritative Data Sources, which provide accurate and timely data • Incorporating metadata about the accuracy and timeliness of data 4
- 5. Information Sharing Challenges Integrated Flight and Airport Airline Weather UAS Safety Other Surveillance Flow Operations Operations Community Community Community Communities Community Community Community Community Services conform Weather Flight publish Track Standards Data SAR Time AXIM KML WXXM Classification Live GML FIXM Other Services WCS ebXML Geospatial Recorded WFS UDDI Coverage WMS Temporal Other Standards Coverage Simulated State/Local Commercial International Government Entities Partners 5
- 6. Inter-Agency Information SharingChallenges Security / Governance NAS Target GIG Information Integration Service Interoperability Network Connectivity Source: FAA Information Exchange Conference 9/2011 Source: DoD Global Information Grid Architectural Vision, 6/2007 6
- 7. Information Sharing Approach • Repeatable process for developing shared understanding through definition of information elements across domains. • Technology capabilities stack that enables the information sharing vision of NextGen. • Services Oriented Architecture • Semantic Web Technology • Federated Ontology • Interagency infrastructure that employs the technology stack and information sharing approaches and validates them in a near-realistic environment. • Enables shared R&D • Addresses real-world info sharing obstacles • Identifies pathways to near-term operational improvements 7
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- 9. Process for SharedUnderstanding Development Transformation • Key Deliverables COI Ontology (RDF/OWL) Rules (XSLT) – COI Ontology Business Process Message Schema – Business Context (DoDAF Artifacts) Analysis (XSD) (OV-2) – Other Artifacts Information Service • Current Engagements Exchange Description Description (WSDL) (OV-3) – Weather Operational Activity Architectural – Integrated Surveillance Model Impact Report (OV-5b) – Unmanned Aircraft System Business Rules Requirements • Consistent with DoD Information Document (SV-4) Service Constraints Exchange Net-Centric Data Architecture, Systems Communications Strategy Process, Ontology Description (SV-2) 9
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- 11. Semantics Metadata Catalogand Portal SOA Registry Scope •Governed within an Agency •Focused on discoverability of published services •Supports only flat, non-semantic data •Focused on governance Semantic Metadata Catalog and Portal Extended Capabilities •Utilizes existing SOA Registry capabilities •Addresses cross-agency information exchanges •Facilitates collaboration •Focuses on discoverability of defined information exchanges •Takes full advantage of Semantic Relationships defined in ontologies Bottom Line: • Provides an intelligent search • Utilizes semantic discovery beyond simple keywords capabilities • Yields a more targeted result set 11
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- 13. Infrastructure Net-Enabled Test Environment(NETE) • Concept – Virtual test environment – no new facility – Government and industry participation – Experimental approach – test, measure, evaluate, adjust – Adopting existing projects; leveraging progress • Benefits – Data sets made available will bring interested developers – Allows demonstration of concepts to flesh out requirements – Allows trade-off studies for architectural decisions – standards, processes, TTPs, tools, infrastructure design – Tests Governance model for efficiency – Accessible to all NextGen participants; can link to outside data sources/consumers – Leverages work already done by NextGen stakeholders 13
- 14. Technology in Action:NETE Demonstrations Service descriptions from NOAA NET Weather registry will imported for Community inter-agency discovery. AF Electronic Systems Center ebXML NOAA Registry Integrated Semantic Metadata Catalog and Portal WCS Surveillance Data Community WFS Source Semantic Process WMS Semantic Layer Alion NETE Lab Metadata FAA Web Services Layer Portal Integration Layer Artifact NETE Ontology Catalog NAS Dashboard Portal Service Registry FAA/National JPDO User NNEW Security Semantic Interface Layer Display Metadata Web 3-D Catalog Coverage Radar Demo Control Service RI Mosaic R&D Domain Mock Services SWIM FAA Emergency OPS ASDI EON DEX ASDE Dashboard HWDS Other Services will be NASA LaRC SMDC entered into the Semantic Metadata Catalog through User Interface. Timing GIIEP 14 Demo 1 Demo 2 One Year Challenge External/Future
- 15. Putting It AllTogether • Business Concept • Service Governance • Service Relationships • Service Discovery • Data Sources Shared Understanding Communities of Interest SWIM Design Time SIP Service NAS Service Registry and Semantic Metadata Registry Repository (NSRR) Catalog and Portal Service Provider Run Time Semantic Mediation SWIM NAS Enterprise Messaging Service (NEMS) Service Consumer State/Local Government • COI Governance • Semantic Commercial • Service Reuse • Semantic Discovery Interoperability Entities • Service Interoperability • Information Federation • ESB Federation International Partners 15
- 16. NextGen Information SharingEnvironment Information Providers Flight Geospatial Weather Safety Security Intel Sensor Airline Airport Other Info Object Info Info Info Info Reports Data Info Info Providers Info NextGen Enterprise Services (Notional) Semantically-Enabled Core User Defined Enterprise Services Operation Enterprise Semantic Layer Messaging Security Picture Services Service Service Service Management Decision Support Data Layer Semantic Mediation Bus™ Services NextGen Information Service Layer Semantically- Semantically- Collaboration SharingSecurity Layer Environment Enabled Enabled Content Service Services Discovery Discovery Network Layer Track Correlation Business Operations Layer Services The Technical Profile defines a set NISE Technical Profile of NextGen Service Specifications to guide future NextGen enterprise Other Services service development programs Human Users, GOAL – Procurement-quality Aircraft Air Traffic Control Applications, or Unanticipated Human Users, Human Users, specifications that can be used to Applications, or Services Applications, or drive acquisition of interoperable in Aviation Services Services Operations services, systems, and networks in support of information sharing. Information Consumers 16
- 17. Way Ahead • Provideoperational transition plan for the technical concepts • Continue to foster JPDO and Inter-Agency Partnership 17
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- 19. Semantic Web Technologies • Semantic Web (aka Linked Data or Web 3.0) is a set of W3C standards and technologies designed to allow machines to understand the meaning of the information on the WWW • Standards-based • Open-source tools • Agent-based distributed computing paradigm • Web Oriented Architecture • Agile Development, improved interoperability • Semantic Web in the Enterprise: A tool for knowledge discovery and management • Common Vocabulary • Open Linked Data • Intelligent Searches • Semantic Web in the Industry • US government and leading social network companies have been implementing semantic-driven solutions Source: Tim Berners-Lee: “Semantic Web and Linked D 19
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- 21. Semantic Metadata Catalogand Portal 21
- 22. Semantic Mediation Bus™(SMB) • An ontology-based web services mediation component that enables services with different message formats to interoperate • Embedding in an Enterprise Service Bus (e.g. SWIM Enterprise Messaging Service) enables runtime semantic mediation within traditional SOA infrastructure, creating a Semantic Mediation BusTM Common Ontology Semantic Mediation BusTM Registry/ Repository Enterprise Service Bus Semantic Semantic Mediator™ Annotation Message Schema Semantic Lookup and Web Service Proxy Interoperability Assessment Mapping Metadata Management Protocol Message Message Service Security Adaption Transformation Routing Discovery Traditional SOA infrastructure Semantic Mediation Bus ™ and Semantic Mediator are trade marks of Alion Science and Semantic Mediation Infrastructure Technology Corporation. The Technology is provided to JPDO under a limited use license. 22
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