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Carnegie Mellon Robotics Institute

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Abstract

In this paper we describe mechanisms for execution monitoring of OWL-S web services. The described mechanisms are implemented as extensions of the OWL-S Virtual Machine which is a component that controls interactions between a client and web services. All extensions are driven by practical needs that arose as part of two projects involving OWL-S web services. Specifically, an event-based model for monitoring and logging is described that allows a human or software agent to analyze, replay or debug the execution. Next, we describe mechanisms for error handling and reporting which is not addressed by the OWL-S specifications. Finally, we describe the virtual machine introspection extensions motivated by needs of advanced software agents as brokers or process mediators that need to interact with web services dynamically.

Keywords

OWL-S, semantic web services

Notes

Associated Center(s) / Consortia: Center for Integrated Manfacturing Decision Systems

Associated Lab(s) / Group(s): Advanced Agent - Robotics Technology Lab

Number of pages: 14

Text Reference

Roman Vaculin and Katia Sycara, "Monitoring execution of OWL-S web services," Proceedings of OWL-S: Experiences and Directions Workshop, European Semantic Web Conference, June, 2007

BibTeX Reference

@incollection{Vaculin_2007_5919,
   author = "Roman Vaculin and Katia Sycara",
   title = "Monitoring execution of OWL-S web services",
   booktitle = "Proceedings of OWL-S: Experiences and Directions Workshop, European Semantic Web Conference",
   month = "June",
   year = "2007",
}

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