On Developing Fair and Orderly Cloud Markets: QoS- and Security-aware Optimization of Cloud Collaboration
Key: WSRS14-1
Author: Olga Wenge, Dieter Schuller, Christoph Rensing, Ralf Steinmetz
Date: September 2014
Kind: @article
Keywords: Cloud market, information security governance, cloud brokerage
Abstract: While cloud markets promise virtually unlimited resource supplies, standardized commodities and proper services, some providers may not be able to offer effectual physical capacity to serve large customers. A solution is cloud collaborations, in which multiple providers unite forces in order to conjointly offer capacities in the cloud markets. Supposably, both the Quality of Service and security properties of such collaborations will be determined by “the weakest link in the chain”, therefore resulting in a trade-off between the monetary aggregates, cumulative capacity and the non-functional attributes of a cloud collaboration. Based on our previous research, we examine efficient composition of cloud collaborations from the broker’s perspective, considering Quality of Service and information security requirements of multiple cloud providers and users and present an exact approach CCCP-EXA.KOM for building cloud collaborations. Furthermore, we propose a Mixed Integer Programming-based heuristic optimization approach CCCP-PRIOSORT.KOM and provide its quantitative evaluation in comparison with our prior optimal approach.
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