The "Fourth Industrial Revolution", an important milestone in the technological evolution has combined advanced manufacturing techniques with the IoT, in order to be able to use analyses and information to take important decisions in the digital manufacturing environment and basically forcing companies to rethink about their organization. This trend relies on the employment of important technologies like Cloud computing, IoT (Internet of Things), Big Data, Artificial Intelligence (AI) with the aim of creating the so-called smart factories. They are called smart because with these technologies, products and tools in the production process get networked enabling in this way communication, sharing of relevant data, new ways of production and real-time optimization.