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Erschienen in:
2014 | OriginalPaper | Buchkapitel
Trust-Aware Decision-Making Methodology for Cloud Sourcing
verfasst von : Francisco Moyano, Kristian Beckers, Carmen Fernandez-Gago
Erschienen in: Advanced Information Systems Engineering
Verlag: Springer International Publishing
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Cloud sourcing consists of outsourcing data, services and infrastructure to cloud providers. Even when this outsourcing model brings advantages to cloud customers, new threats also arise as sensitive data and critical IT services are beyond customers’ control. When an organization considers moving to the cloud, IT decision makers must select a cloud provider and must decide which parts of the organization will be outsourced and to which extent. This paper proposes a methodology that allows decision makers to evaluate their trust in cloud providers. The methodology provides a systematic way to elicit knowledge about cloud providers, quantify their trust factors and aggregate them into trust values that can assist the decision-making process. The trust model that we propose is based on trust intervals, which allow capturing uncertainty during the evaluation, and we define an operator for aggregating these trust intervals. The methodology is applied to an eHealth scenario.