Data management systems for the hierarchical edge

In recent years, there has been an exponential increase in the generation of data at the edge of the network. The International Data Corporation (IDC) estimates that the Global Datasphere, which was 33 zettabytes in 2018, will rise to 175 zettabytes by 2025, and there will be more than 150 billion connected devices worldwide [10]. The Internet of Things (IoT) segment is expected to experience the fastest growth, with data creation at the edge of the network projected to increase almost twice as fast as in the cloud. As a result, worldwide spending on edge computing is forecasted to reach 317 billion by 2026, as per IDC projections [1].