Flouris, I.I.FlourisManikaki, V.V.ManikakiGiatrakos, N.N.GiatrakosDeligiannakis, A.A.DeligiannakisGarofalakis, M.M.GarofalakisMock, MichaelMichaelMockBothe, SebastianSebastianBotheSkarbovsky, I.I.SkarbovskyFournier, F.F.FournierStajcer, M.M.StajcerKrizan, T.T.KrizanYom-Tov, J.J.Yom-TovVolarevic, M.M.Volarevic2022-03-132022-03-132016https://publica.fraunhofer.de/handle/publica/39568810.1145/2933267.2933289We present FERARI, a prototype for processing voluminous event streams over multi-cloud platforms. At its core, FERARI both exploits the potential for in-situ (intra-cloud) processing and orchestrates inter-cloud complex event detection in a communication-efficient way. At the application level, it includes a user-friendly query authoring tool and an analytics dashboard providing granular reports about detected events. In that, FERARI constitutes, to our knowledge, the first complete end-to-end solution of its kind. In this demo, we apply the FERARI approach on a real scenario from the telecommunication domain.en005conference paper