SAMI: The SLA Management Instance

Authors:
Constantinos Kotsokalis;Ramin Yahyapour;Miguel Angel Rojas Gonzalez
Affiliations:
-;-;-
Venue:
ICIW '10 Proceedings of the 2010 Fifth International Conference on Internet and Web Applications and Services
Year:
2010

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Abstract

The vision for economies of reusable services that can be composed into business processes is still hindered by the lack of dependability as regards their execution. Service Level Agreements (SLAs) are an instrument to express and codify requirements for services, so that an acceptable level of determinism can be provided, and customers can rely on them as such. In this work we present the SLA Management Instance (SAMI) architecture for a reusable autonomic entity that can support negotiation and runtime management of SLAs, without disruptive effects on the existing corresponding services. This architecture takes extra steps towards supporting hierarchies of cross-domain SLAs, reflecting similar hierarchies of cross-domain service compositions.