Home // International Journal On Advances in Systems and Measurements, volume 2, number 1, 2009 // View article

On distributed SLA monitoring and enforcement in service-oriented systems

Authors:
Nicolas Repp
Dieter Schuller
Melanie Siebenhaar
André Miede
Michael Niemann
Ralf Steinmetz

Keywords: Monitoring; SLA enforcement; Location strategies; Service-oriented Architectures

Abstract:
For the integration of systems across enterprise boundaries, the application of Web service technology and the Service-oriented Architecture (SOA) paradigm have become state of the art. Here, the management of the quality delivered by third party services is crucial. In order to achieve high service quality, requirements therefore need to be initially specified using Service Level Agreements (SLAs), which are later on monitored during runtime. In case of SLA violations, appropriate countermeasures have to be executed. The paper presents an integrated approach for SLA monitoring and enforcement using distributed autonomous monitoring units. Additionally, the paper presents strategies to distribute those units in an existing service-oriented infrastructure based on mixed integer programming techniques. Furthermore, appropriate framework support is given by the AMAS.KOM framework enabling distributed SLA monitoring and enforcement based on the developed distribution strategies. As a foundation for our approach, the WS-Re2Policy language is presented, which allows the specification of both requirements with respect to service quality and the necessary countermeasures at the same time.

Pages: 33 to 43

Copyright: Copyright (c) to authors, 2009. Used with permission.

Publication date: June 7, 2009

Published in: journal

ISSN: 1942-261x