end of 2006; Francesco D’Andria, Josep Martrat, Giuseppe Laria, Pierluigi Ritrovato, Stefan Wesner

Abstract:
This paper presents an approach for managing SLA contracts in new highly dynamic mobile Grid scenarios tackled in the Akogrimo project [1]. The problem of controlling context, negotiate and control QoS as well as undertake corrective actions is outlined. The main outcome is the validation of emerging specifications like WS-Agreement and WS-Agreement Negotiation. The purpose is to increase the technological experience of SLA contract management in Grids and propose some extensions of specifications. The paper also indicates the need to develop simplified and more flexible contract negotiation mechanisms in these environments, and the need for collocation protocols for negotiation. The lack of suitable and reliable SLA control mechanisms is slowing down the adoption of Grid technologies which provide numerous advantages such us optimal use of resources, higher flexibility and new business models in open and distributed e-business context for industry.

References:
[1]. Access to Knowledge through the Grid in a mobile World (Akogrimo) http://www.mobilegrids.org/
[2]. Antonios Litke, Dimitrios Skoutas, Theodora Varvarigou, Mobile Grid Computing: Changes and Challenges of Resource Management in a Μobile Grid Environment http://mobilesummit2006.org/
[3]. A. Andrieux, K. Czajkowski, A. Dan, K. Keahey, H. Ludwig, T. Nakata, J. Pruyne, J. Rofrano, S. Tuecke, and M. Xu, Web services agreement specification (WSAgreement) (draft). https://forge.gridforum.org/projects/graap-wg, 2006.
[4]. A. Andrieux, K. Czajkowski, A. Dan, K. Keahey, H. Ludwig, J. Pruyne, J. Rofrano, S. Tuecke, and M. Xu, Web services agreement negotiation specification (WSAgreementNegotiation) (draft). https://forge.gridforum.org/projects/graap-wg, 2004.
[5]. d.g.a. mobach, b.j. overeinder, and f.m.t. brazier, A WS-Agreement based resource negotiation framework for mobile agents.
[6]. A Critical Analysis of the WS-Agreement Specification http://www.csc.liv.ac.uk/~sha/WS-Agreement/
[7]. Web Services Notification http://www-128.ibm.com/developerworks/library/specification/ws-notification/
[8]. L. Thompson “The Mind and Heart of the Negotiation” Prentice-Hall Inc., 1998

Source:
Exploiting the Knowledge Economy: Issues, Applications, Case Studies (IOS Press, ISBN 1-58603-682-3, editors P. Cunningham, M. Cunningham)

URL:
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