QoS aggregation for service orchestrations based on workflow pattern rules and MCDM method: evaluation at design time and runtime

Authors:
Nabil Fakhfakh;Hervé Verjus;Frédéric Pourraz;Patrice Moreaux
Affiliations:
LISTIC, University of Savoie, Annecy-Le-Vieux, France;LISTIC, University of Savoie, Annecy-Le-Vieux, France;LISTIC, University of Savoie, Annecy-Le-Vieux, France;LISTIC, University of Savoie, Annecy-Le-Vieux, France
Venue:
Service Oriented Computing and Applications
Year:
2013

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Abstract

Service consumers satisfaction is considered today as one of the main concern to be ensured by service providers, especially with the spread of concurrency and the increase of functionally equivalent services. This satisfaction is closely related to quality of service (QoS) perceived by service consumers. In this context, we propose an approach to determine the satisfaction degree corresponding to the QoS of service-based applications, with regard to service consumers' QoS expectations. Our approach is based on a preference model, which is built only on the basis of service consumer's provided information. This preference model is also based on the 2-additive Choquet operator that takes into account preferential dependencies. In this paper, we target both design time and runtime aggregation of QoS of service-based applications.