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The Internet of Things (IoT) continues to grow and develop rapidly. Internet of things, is considered the driving factor of the 4th industrial revolution. In the present era of advanced technology, IoT makes a vital contribution toward the development of sophisticated knowledge-aware systems for various growing sectors, like healthcare, education, intelligent cities, savvy homes, automized agriculture, etc. Through an IoT ecosystem, core elements and their importance or meaning can be defined. Any specialized IoT solution consists of several layers: a communication network, devices, clouds where data is processed, and the platforms themselves that analyze the data. All of them should be available from the same ecosystem