A cloud services brokerage is third-party software that adds value to cloud services on behalf of cloududservice consumers. Their goal is to make the services more specific to a company, or to integrate orudaggregate services, to enhance their security, or to do anything which adds a significant layer of value (i.e.udcapabilities) to the original cloud services being offered (Plummer, 2012). There exist several solutionsudfocused on providing service brokerage of Cloud Service Providers (CSP), mainly VM’s and virtualizedudresources, but not of other services offered (e.g. Data Processing as a Service) or SaaS applications whichudare certified and legally compliant. This paper proposes a solution for a Federated Cloud Service Brokerud(FCSB) overcoming existing challenges in the public sector such as Governance, Interoperability andudportability, SLAs compliance and assessment, Intelligent discovery of cloud services, cross borderudinteroperability and legislation awareness . The analysis of the existing solutions, and the presentation of theudapproach made in (Alonso, et al., 2016) is complemented with a technical design including the mainudfunctionalities and the modules that will implement them.
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