The process mediation framework for semantic web services
International Journal of Agent-Oriented Software Engineering
A Semantic Web Services-based approach for production systems control
Advanced Engineering Informatics
A design of policy-based composite web services QoS monitoring system
International Journal of Critical Computer-Based Systems
Proceedings of the 12th International Conference on Information Integration and Web-based Applications & Services
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In this paper we describe mechanisms for execution monitoring of semantic web services, based on OWL-S. The use of semantic descriptions and ontologies is a valuable extension to current SOA conceptualizations. The described mechanisms are implemented as extensions of the OWL-S Virtual Machine that we have previously developed. The OWL-S Virtual Machine is a component that controls the in- teractions between a client and the web service it uses. The presented extensions are a result of practical requirements that arose in the course of involvement with two projects that utilize OWL-S based semantic web services. In partic- ular, we present an event-based model for monitoring and logging interactions. The interaction trace allows a human or software agent to analyze, replay or debug the execu- tion. Additionally, we describe proposed extensions to cur- rent specification in OWL-S for reporting and handling of errors. Finally, we describe extensions to the OWL-S Vir- tual Machine based on introspection to enable dynamic in- teractions with process mediators.