Temporal Aggregates for Web Services on the Semantic Web
ICWS '05 Proceedings of the IEEE International Conference on Web Services
The TCPN-based Verification of Temporal Consistency in Web Service Process
ICEBE '06 Proceedings of the IEEE International Conference on e-Business Engineering
Qos-Aware Automatic Composition of Web Services Using AI Planners
ICIW '07 Proceedings of the Second International Conference on Internet and Web Applications and Services
PDDL2.1: an extension to PDDL for expressing temporal planning domains
Journal of Artificial Intelligence Research
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ICSOC'05 Proceedings of the Third international conference on Service-Oriented Computing
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Time is an important non-functional parameter to consider in service compositions, especially in environments where a service must be provided before a deadline. In this paper service composition takes service execution time into account and, to provide the composition with more reliability, considers the workload and availability of service providers. Furthermore, negotiation protocols are used to add flexibility between clients and providers that participate in the service composition. Negotiation protocols increase the chances of reaching an agreement by allowing both, providers and clients, to exchange their proposals in order to adjust the negotiation terms related to service execution time.