Currently we have many systems that allow us to capture in real time all the necessary data to be able to foresee, as far as possible, all those irregular behaviors that can lead to a breakdown, plan maintenance well and manage to affect production as little as possible . One of the first steps in implementing Industry 4.0 and Maintenance 4.0 is deciding what to measure and how. Measuring by measuring is not an economical or solvent solution, since we can also be inundated with data that does not add value to us. For this reason, from MYC we advise on data capture, what data and its exploitation, both human and applying Big Data or AI techniques.