Semantic Web Services CS - 6V81 University of Texas at Dallas November 23, 2009 Presented by-
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UT DALLAS Erik Jonsson School of Engineering & Computer Science FEARLESS engineering Semantic Web Services CS - 6V81 University of Texas at Dallas November 23, 2009 Presented by- Rohit Sharma
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Semantic Web Services CS - 6V81 University of Texas at Dallas November 23, 2009 Presented by- Rohit Sharma. Agenda!!!. Picture? Why? What? Types? Tasks? Structure? Conclusion. http://www.authenticresourcing.com/2008/staff-problems.gif. Picture ?. - PowerPoint PPT Presentation
Transcript of Semantic Web Services CS - 6V81 University of Texas at Dallas November 23, 2009 Presented by-
UT DALLASUT DALLAS Erik Jonsson School of Engineering & Computer Science
FEARLESS engineering
Semantic Web ServicesCS - 6V81
University of Texas at Dallas November 23, 2009
Presented by-Rohit Sharma
FEARLESS engineering
Agenda!!!
1.Picture?
2.Why?
3.What?
4.Types?
5.Tasks?
6. Structure?
7.Conclusion
http://www.authenticresourcing.com/2008/staff-problems.gif
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Picture ?
http://www.w3.org/2004/Talks/0612-sb-wsswapps/farside2-2.gif
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Picture ?
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Why?
• Syntactic Interoperability [Before]• Semantic Meaning of Messages [After]• Great access of Content [Before]• Great access of Services [After]
OK, 2 points aint sufficient son. *Cough* [ LOL ]
Wait NOOB.
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Why?• Users & Software Agents
– Discover [Web Resources]– Locate [Web Resources]– Invoke [Web Resources]– Compose [Web Resources]– Monitor [Web Resources]– Particular Services– Particular Properties
Do all of the above with high degree of automation
I am LOST , so what is Semantic Web Services?
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What?
• Component of Semantic Web [It is]• Conventional Web Service [Just Like]• Server End of Client-Server System [which is]• Machine-to-Machine Interaction [for]• Via World Wide Web [using]Any Technical Term or Ontology for this?OWL-S: Semantic Markup for Web Services
Can I go home I am getting Migraine ………
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Types?
• Atomic *Simple*
– Single Computer Program, Sensor, or Device– Invoked by a Request Message– Performs its Task– Produces a Single Response– No Ongoing Interaction
• Composite *Complex*
– Composed of Multiple More Primitive Services– Extended Interaction
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Tasks?
• Automatic Web Service Discovery– Automated Process for Location of Web Services
– Provide a Particular Class of Service Capabilities
– While Adhering to some Client-Specified Constraints
What The Hell?
• Automatic Web Service Invocation– Automatic Invocation of Web Service by Program/Agent
– Given Only a Declarative Description of that Service
Explain or Sue !!!
• Automatic Web Service Composition & Interoperation• Involves Automatic Selection, Composition & Interoperation• To Perform some Complex Task• Given a High-Level Description
GRRRRR *Nerd Rage*
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Structure?
Motivated by the Need to Provide 3 Types of Knowledge *each characterized by the question it answers*
1. What Does the Service Provide for Prospective Clients?
--- Service Profile• It is used to Advertise the Service• The Service Profile tells “What the Service Does“• Helps a Service-Seeking Agent • To Determine Whether the Service Meets its Needs
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Structure?
Motivated by the Need to Provide 3 Types of Knowledge *each characterized by the question it answers*
2. How is it used?
--- Service Model• Uses the property “describedBy”• Tells a Client How to Use the Service, by Detailing the Semantic
Content of Requests• The Conditions Under which Particular Outcomes will Occur • The Step by Step Processes Leading to Those Outcomes
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Structure?
Motivated by the Need to Provide 3 Types of Knowledge *each characterized by the question it answers*
3. How does one interact with it?
--- Service Grounding• Provides the Needed Details about Transport protocols• Specifies Input , Output & Way of Exchanging Data
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Visualization !!
http://www.w3.org/Submission/OWL-S/Service-Ontology1.1.gif
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Conclusion:
• OWL-S is an Ontology for describing Web Services
• Enable Users and Software Agents to do a LOT (their way)
• Better place where people can not only find information but also get things done
http://www.cartoon/teen/church/light.gif
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References:1. http://utdallas.bncollege.com/wcsstore/
ExtendedSitesCatalogAssetStore/813_81302_1_33145.htm
2. http://www.w3.org/Submission/OWL-S/#7
3. http://www.layoutready.com/images-Template-TC0050701D-F.jpg
4. http://en.wikipedia.org/wiki/Semantic_Web_Services
5. http://www.cartoon/teen/church/light.gif
6. Belhajjame, K., Embury, S.M., Paton, N.W., Stevens, R. and Goble, A.C., (April 2008). "Automatic Annotations of Semantic Web Services Based on Workflow Definitions". ACM Transactions on the Web 2 (2): 1–34
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Thank You:
ITS OVER? OMG YAYYYYYYYYYYY
