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Service Level Agreement (SLA) in Utility Computing Systems
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BibTeX
@MISC{Wu_servicelevel,
author = {Linlin Wu and Rajkumar Buyya},
title = {Service Level Agreement (SLA) in Utility Computing Systems},
year = {}
}
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Abstract
In recent years, extensive research has been conducted in the area of Service Level Agreement (SLA) for utility computing systems. An SLA is a formal contract used to guarantee that consumers ‟ service quality expectation can be achieved. In utility computing systems, the level of customer satisfaction is crucial, making SLAs significantly important in these environments. Fundamental aspect is the management of SLAs, including SLA autonomy management or trade of among multiple Quality of Service (QoS) parameters. Many SLA languages and frameworks have been developed as solutions; however, there is no overall classification for these extensive works. Therefore, the aim of this chapter is to present a comprehensive survey of how SLAs are created, managed and used in utility computing environment. We discuss existing use cases from Grid and Cloud computing systems to identify the level of SLA realization in state-of-art systems and emerging challenges for future research.
Keyphrases
service level agreement utility computing system customer satisfaction many sla language use case fundamental aspect recent year utility computing environment sla realization overall classification quality expectation extensive work comprehensive survey future research extensive research sla autonomy management formal contract state-of-art system multiple quality
