Generalized aggregate Quality of Service computation for composite services

Authors:
Yong Yang;Marlon Dumas;Luciano García-Bañuelos;Artem Polyvyanyy;Liang Zhang
Affiliations:
School of Computer Science, Fudan University, Handan 220, Shanghai 200433, China;Institute of Computer Science, University of Tartu, J. Liivi 2, Tartu 50409, Estonia;Institute of Computer Science, University of Tartu, J. Liivi 2, Tartu 50409, Estonia;Hasso-Plattner-Institute, University of Potsdam, Prof.-Dr.-Helmert-Str. 2-3, D-14482 Potsdam, Germany;School of Computer Science, Fudan University, Handan 220, Shanghai 200433, China
Venue:
Journal of Systems and Software
Year:
2012

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Abstract

This article addresses the problem of estimating the Quality of Service (QoS) of a composite service given the QoS of the services participating in the composition. Previous solutions to this problem impose restrictions on the topology of the orchestration models, limiting their applicability to well-structured orchestration models for example. This article lifts these restrictions by proposing a method for aggregate QoS computation that deals with more general types of unstructured orchestration models. The applicability and scalability of the proposed method are validated using a collection of models from industrial practice.