“…Several authors have proposed taxonomies for dealing with IoE and IoT systems in the following distinct approaches: technology and architecture design [ 24 , 35 , 36 , 37 , 38 , 39 , 40 ], sensors’ capabilities [ 26 , 41 , 42 , 43 , 44 , 45 ], and observation context issues [ 25 , 27 , 28 , 46 , 47 , 48 , 49 , 50 , 51 ]. However, still, due to the considerable heterogeneity of actual IoT devices, these taxonomies have approach limitations, mostly restricted to enabling technology and infrastructure.…”