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Semantic Web Services Approaches and Technologies

Semantic Web Services Approaches and Technologies

This video was recorded at REASE. This is a one-hour video recording of the presentation of John Domingue at the First Asian Autumn School on the Semantic Web. It comprises one video synchronized with the slides (requires Flash) or the videos alone. Table of Contents: Semantic Web Services: Approaches and Technologies Contents Motivation 'The Internet has ?' 'The Web has ?' 7.2 billion Web searches/month (3.9 billion by Google) far exceed the world population 161 exabytes (10<sup>8 </sup>TB) of information was created or replicated worldwide in 2006. That?s more than in the previous 5,000 years. IDC estimates 6X growth by 2010 to 988 exabytes (a zetabyte) / year New technical information doubles every 2 years. ? every 72 hours by 2010. Achieving Web Scale Semantic Web SW = A Conceptual Layer over the web SW is Heterogeneous! Web Services What?s a Web Service? Web Services Framework Problems with Web Services Today SWS Vision Semantic Web Services (is) Semantic Web Service Broker Web Service Modelling Ontology (WSMO) WSMO Design Principles WSMO Top Level Notions Non-Functional Properties Non-Functional Properties List WSMO Top Level Notions Ontology Description and Usage WSMO Ontology Design Ontology Specification WSMO Top Level Notions Goals Goal Specification (1/2) Goal Specification (2/2) WSMO Top Level Notions WSMO Web Service Description Capability Specification (1/2) Capability Specification (2/2) WSMO Web Service Description Choreography & Orchestration Choreography Aspects (1/2) Choreography Aspects (2/2) WSMO Web Service Description Orchestration Aspects Common requirements for service interface description Orchestration Definition Runtime Orchestration WSMO Top Level Notions Mediation (Wiederhold, 94) Mediation Levels of Mediation within Semantic Web Services WSMO Mediators Overview Mediator Structure OO Mediator - Example GG Mediators GG Mediator Example WG Mediators WW Mediators WW Mediator Example Data Level Mediation (1/2) Data Level Mediation (2/2) Functional Level Mediation (1/2) Functional Level Mediation (2/2) Process Level Mediation (1/2) Process Level Mediation (2/2) Other Semantic Web Service Initiatives OWL-S OWL-S Ontology OWL-S Upper Ontology WSMO OWL-S Comparison Semantic Annotations for WSDL (SAWSDL) SAWSDL Scope IRS-III Design Principles Features of IRS-III (1/3) Features of IRS-III (2/3) Features of IRS-III (3/3) IRS-III Overall Architecture IRS-III Server IRS-III Demo Context European Travel Scenario European Travel Demo IRS-III Demo Summary (1/2) Summary (2/2) Relevant URLs Acknowledgements Thanks


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