The 2nd plenary meeting was held in Zagreb, Croatia, at the premises of the University of Zagreb, on 20-22 of April. 41 participants attended this 2.5 days meeting, where discussions focused on a plethora of topics: from use cases, business models and requirements, to architectural design, implementation framework and specification of the Level-1 and 2 symbIoTe system functionality, just to name a few! Besides the presentations of the plenary agenda, 3 parallel sessions also took place, where smaller groups of experts dived into the details of requirements collection, architecture design and security aspects.