In deliverable D1.2, the state-of-the-art of emerging and promising digital technologies (e.g., Blockchain, hyperledger, fog/edge computing, data analytics, big data, machine learning, Industrial Internet of Things - IIoT, digital twin, etc.) is characterised. Each technology is described and analysed, according to its state, maturity, tools, EU project solutions, benchmarking and assessment, application of i4Q solutions. At the same time, an evaluation framework is defined for the comparative analysis of technologies’ features. Six dimensions are used, namely; general, technological, business model (financials, regulatory, etc.), informational and social and various evaluation criteria, in order to characterize these technologies.