A Recommendation-Based Approach for Cloud Service Brokerage: A Case Study in Public Administration

Cloud for Europe (C4E) is a project that aims at creating new Cloud workflows, named Service Flow (SF), for Public Administrations (PAs). These Services must guarantees on one hand to preserve national authorities, and on the other hand to promote efficiency, collaboration and harmonization for European PA bodies. This is possible by means of the creation of a Digital Market where PAs can select the Services (Service Flow Lots SFLs) that compose the entire SF. However the creation of such workflows is not trivial at all due the different legislations of European countries. In such a perspective, in this paper, we discuss a Recommendation-Based Cloud Service Brokerage system that helps European PA CSPs to choose SFL in order to create administration service workflows. In particular, we focus on a system prototype based on a NoSQL document database, i.e., MongoDB. Experiments comparing un-trusted, semi-trused and trusted scenarios prove the goodness of the recommendation-based Cloud service brokerage system prototype in terms of performance.