We present a Systematic Literature Review (SLR) on Cloud Computing that selected 39 papers from first tier journals and conferences in the period 2008-2012. The selective approach captures the relevant points of view on Cloud Computing, namely the overall paradigm in terms of delivery and deployment. Afterwards, we point out the technological issues about networking and data management in Cloud Computing. This SLR extends previous reviews thanks to a longer time period and a wider research sample. Cloud Computing, Literature Review, Cloud Deployment Model, Cloud Delivery Model, IT management
In recent past, organizations have purchased IT equipment to be installed and directly managed within their own Data Centres. The rise of Cloud Computing generated an important shift of focus from the private boundaries of the companies to a new golden era of IT outsourcing. To analyse the quality of the services available on the market we conducted a survey based upon 58 IT professionals who have migrated critical business applications to the Public Cloud. The survey has been carried on to highlight the security policies, the minimum performance warranted by the Cloud providers and the presence of monitoring tools which allow to the customers a direct control on the deployed services. The study shows that the SLAs ofTered by Public Cloud Providers are not able to properly address the needs of the customers ensuring a low degree of control and a lack of transparency on the actual performance of the services.
The key issue in cloud computing in enterprises is the management of the Quality of Service (QoS), by an appropriate SLM (Service Level Management). Cloud Service Provider are offering SLMs to their users. We think that a third party SLM can be a better way to assure a robust and equal SLM. This paper presents the elements of third party SLM, namely Cloud Service Registration Agent, Negotiation Agent, Compensation Agent, Comment Agent, Billing Agent and Service Monitoring Engine. Such framework has been tested in a real life case. Results show that third party SLM is not only equal, but also dependable and reasonably easy to implement.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.