QoS-driven proactive adaptation of service composition

Aschoff, Rafael and Zisman, Andrea (2011). QoS-driven proactive adaptation of service composition. In: 9th International Conference on Service Oriented Computing (ICSOC 2011), 5-8 Dec 2011, Paphos, Cyprus.

DOI: https://doi.org/10.1007/978-3-642-25535-9_28

URL: http://icsoc11.icsoc.org/

Abstract

Proactive adaptation of service composition has been recognized as a major research challenge for service-based systems. In this paper we describe an approach for proactive adaptation of service composition due to changes in service operation response time; or unavailability of operations, services, and providers. The approach is based on exponentially weighted moving average (EWMA) for modelling service operation response time. The prediction of problems and the need for adaptation consider a group of services in a composition flow, instead of isolated services. The decision of the service operations to be used to replace existing operations in a composition takes into account response time and cost values. A prototype tool has been implemented to illustrate and evaluate the approach. The paper also describes the results of a set of experiments that we have conducted to evaluate the work.

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About

• Item ORO ID
• 37562
• Item Type
• Conference or Workshop Item
• Extra Information
• Published in:
  Service-Oriented Computing, Lecture Notes in Computer Science, Volume 7084, pp. 421-435
• Keywords
• proactive adaptation; response time; cost; spatial correlation
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Computing and Communications
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © 2011 Springer-Verlag Berlin Heidelberg
• Depositing User
• Andrea Zisman