Security: Well known security issues such as data loss, phishing and botnet create serious threats to an organization's data and software (Rittinghouse & Ransome, 2010).
Costing Model: Cloud consumers must consider the trade offs amongest computation, communication and integration. While migrating to the cloud can significantly reduce the infrastructure cost.
Charging Model: From a cloud provider's perspective the elastic resource pool has made the cost analysis a lot more complicated than regular data centers (Tajts, 2012).
Service level agreement: It is vital for consumers to obtain guarantees from providers on service delivery.
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