Abstract
Different cloud computing service providers offer their customers' services with different risk levels. The customers wish to minimize their risks for a given expenditure or investment. This paper concentrates on consumers' point of view. Cloud computing services are composed of services organized according to a hierarchy of software application services, beneath them platform services which also use infrastructure services. Providers currently offer software services as bundles which include the software, platform and infrastructure services. Providers also offer platform services bundled with infrastructure services. Bundling services prevent customers from splitting their service purchases between a provider of software and a different provider of the underlying platform or infrastructure. In this paper the underlying assumption is the existence of a free competitive market, in which consumers are free to switch their services among providers. The proposed model is aimed at the potential customer who wishes to compare the risks of cloud service bundles offered by providers. The article identifies the major components of risk in each level of cloud computing services. A computational scheme is offered to assess the overall risk on a common scale.
Highlights
Organizations base their computing facilities on server farms located inside the organization in geographical central sites
According to [11] cloud computing architecture is more modular compared to traditional hosting architectures based in server farms, and programs running on different layers are loosely coupled, enabling the development of a wide range of applications
This paper proposes a technique for evaluating and comparing risks between different service providers in the three Cloud Computing (CC) layers
Summary
Organizations base their computing facilities on server farms located inside the organization in geographical central sites. In the last years organizations began to shift parts of their computing infrastructures outside the geographic organizational borders to the cloud, where the facilities are owned and managed by other organizations. Reference [1] states that shifting computing infrastructure outside the geographic borders enforces performing changes in production processes and technological changes. Those organizations have to establish new processes of production control, service level monitoring, and resolve security and privacy issues. Cloud model computing infrastructure services are typically located outside the organization’s sites at a cloud service provider. An organization can use infrastructure services supplied by public, private or as part of a community.
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