Managing service level agreement contracts in OGSA-based Grids

Litke, A; Konstanteli, K; Andronikou, V; Chatzis, S; Varvarigou, T

dc.contributor.author	Litke, A	en
dc.contributor.author	Konstanteli, K	en
dc.contributor.author	Andronikou, V	en
dc.contributor.author	Chatzis, S	en
dc.contributor.author	Varvarigou, T	en
dc.date.accessioned	2014-03-01T01:28:44Z
dc.date.available	2014-03-01T01:28:44Z
dc.date.issued	2008	en
dc.identifier.issn	0167-739X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18948
dc.subject	Execution management services	en
dc.subject	Open Grid services architecture	en
dc.subject	Service level agreement	en
dc.subject.classification	Computer Science, Theory & Methods	en
dc.subject.other	Computer architecture	en
dc.subject.other	Quality of service	en
dc.subject.other	Scalability	en
dc.subject.other	Utility programs	en
dc.subject.other	Contractual terms	en
dc.subject.other	Execution Management Service	en
dc.subject.other	Open Grid Services Architecture	en
dc.subject.other	Service Level Agreement	en
dc.subject.other	Grid computing	en
dc.title	Managing service level agreement contracts in OGSA-based Grids	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.future.2007.06.004	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.future.2007.06.004	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	Grids and mobile Grids can form the basis and the enabling technology for pervasive and utility computing due to their ability to be open, highly heterogeneous and scalable. However, the process of selecting the appropriate resources and initiating the execution of a job is not enough to provide quality in a dynamic environment such as a mobile Grid, where changes are numerous, highly variable and with unpredictable effects. In this paper we present a scheme for advancing and managing Quality of Service (QoS) attributes contained in Service Level Agreement (SLA) contracts of Grids that follow the Open Grid Services Architecture (OGSA). In order to achieve this, the execution environment of the Grid infrastructure establishes and exploits the synergies between the various modules of the architecture that participate in the management of the execution and the enforcement of the SLA contractual terms. We introduce an Execution Management Service which is in collaboration with both the application services and the network services in order to provide an adjustable quality of the requested services. The components that manage and control the execution in the Grid environment interact with the suit of the SLA-related services exchanging information that is used to provide the quality framework of the execution with respect to the agreed contractual terms. The described scheme has been implemented in the framework of the Akogrimo IST project. (C) 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Future Generation Computer Systems	en
dc.identifier.doi	10.1016/j.future.2007.06.004	en
dc.identifier.isi	ISI:000253032400001	en
dc.identifier.volume	24	en
dc.identifier.issue	4	en
dc.identifier.spage	245	en
dc.identifier.epage	258	en