What is Semantic Service provisioning

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Teaching session at WWRF #18 meeting, June 2007

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What is Semantic Service provisioning

  1. 1. Teaching Session: What is Semantic Service provisioning? Josef Noll University Graduate Center - UniK WWRF #18, WG2 Helsinki, FIN,13.6.2007 13.6.2007, Josef Noll -
  2. 2. Agenda From Web Services to Semantic Web Services  Service Oriented Architecture (SOA) – Web Services + Semantic Web = Semantic Web Services – Applications  Standardisation  Tools  How to enable Semantic Web Services – 13.6.2007, Josef Noll Providing Semantic Services 2 [Source: Michael Stollberg and Armin Haller, DERI]
  3. 3. Challenge: Service composition Interface My Company Next Generation  Applications: App App App Support Comp. 1 2 3 Customized services – Complex to manage WEB SAP – High flexibility – Short time to market – Complex Telecom-IT Telecom Operator – Alternative integration access Roaming Location Home Work Security Personal Challenges  Profile Friend Train Telenor access Support the customer – Hotel Car and her devices Join forces with others – (roaming) 13.6.2007, Josef Noll Providing Semantic Services 3
  4. 4. Industry requirements Web services Semantic Web Services  Fixed service set, Static  Flexible services, easy service composition, Low new services degree of automation  Poor reliability  Alternative service provision  Fixed Service Level Agreement  Global, dynamic services 13.6.2007, Josef Noll Providing Semantic Services 4
  5. 5. The Semantic Web Services Vision Bringing the web to its full potential Semantic Web Web Services Dynamic Services UDDI, WSDL, SOAP WWW Semantic Web Static URI, HTML, HTTP RDF, RDF(S), OWL 13.6.2007, Josef Noll Providing Semantic Services 5
  6. 6. From SOA to Semantic based services  Service Oriented Architecture (SOA) • Architecture • Web Services  Add Semantics to Web services  Establish Platform to deal with semantics  Extend your Web services to Semantic Web services  “It’s done - Congratulations!” 13.6.2007, Josef Noll Providing Semantic Services 6
  7. 7. ASG – an advanced SOA System 13.6.2007, Josef Noll Providing Semantic Services 7 Note: Not any longer official ASG syntax
  8. 8. The Promise of Web Services web-based SOA as new system design paradigm 13.6.2007, Josef Noll Providing Semantic Services 8
  9. 9. Web Services Published in Service Registry Service request Web Service searches Service Service creates sends to request Discovery Service input for Described Description Web in (.wsdl) Services Service Message Message Exchange Exchange Invocation WS platform 13.6.2007, Josef Noll Providing Semantic Services 9
  10. 10. ASG based Semantic Web Services WS platform Published in Service Registry Service request Semantic Web Service searches Service creates Service request Discovery & Planning Service input for Described Description Web in (.wsdl) Services Message Message Service Exchange Exchange Invocation & Monitoring Client calls Service uses goals ASG understands ontology understands Service expressed in expressed and request S

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