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SLAs for cross-layer adaptation and monitoring of service-based applications

Bratanis, K., Dranidis, D. and Simons, A.J.H. (2011) SLAs for cross-layer adaptation and monitoring of service-based applications. In: Bianculli, D., Guinea, S., Metzger , A. and Polini, A., (eds.) QASBA '11 Proceedings of the International Workshop on Quality Assurance for Service-Based Applications. International Workshop on Quality Assurance for Service-Based Applications (QASBA '11), 14/09/2011, Lugano, Switzerland. ICPS: ACM International Conference Proceeding Series . ACM New York, NY, USA , pp. 28-32. ISBN 978-1-4503-0826-7

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Abstract

Cross-layer adaptation and monitoring (CLAM) is an approach to the run-time quality assurance of service-based applications (SBAs). The aim of CLAM is to monitor the different layers of an SBA and correlate the monitoring results, such that in the event that a problem occurs an effective adaptation strategy is inferred for enacting a coordinated adaptation across all layers of the SBA. An important aspect of CLAM is the definition of the appropriate Service-Level Agreements (SLAs) for third party services utilised in the different layers of the SBAs. In this paper, we present insights into how to define SLAs for CLAM, by analysing SBAs in order to differentiate the third party business, software and infrastructure services utilised by the SBA. As a case study, we apply the analytical approach to an existing platform-as-a-service framework, which has been developed as an SBA and could benefit from CLAM. The analysis reveals the different third party services and their characteristics, as a precursor to defining SLAs. The case study successfully demonstrates how distinct SLAs for business, software and infrastructure services may be applied respectively in the BPM, SCC and SI layers of an SBA, to provide a flexible monitoring and adaptation response across layers.

Item Type: Proceedings Paper
Copyright, Publisher and Additional Information: © ACM, 2010. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in the proceedings of the International Workshop on Quality Assurance for Service-Based Applications, {978-1-4503-0826-7, (2011)} http://doi.acm.org/10.1145/2031746.2031755 Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from Publications Dept, ACM Inc., fax +1 (212) 869-0481, or permissions@acm.org.
Keywords: Service-Based Applications, Quality Assurance, Monitoring, Adaptation, Service-Level Agreements, Case study
Institution: The University of Sheffield
Academic Units: The University of Sheffield > University of Sheffield Research Centres and Institutes > South East European Research Centre (Sheffield)
Depositing User: Mr Konstantinos Bratanis
Date Deposited: 22 Nov 2011 09:14
Last Modified: 15 Sep 2014 03:49
Published Version: http://dx.doi.org/10.1145/2031746.2031755
Status: Published
Publisher: ACM New York, NY, USA
Identification Number: 10.1145/2031746.2031755
URI: http://eprints.whiterose.ac.uk/id/eprint/43425

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