World trade has been modified by a new scenario in which the world is more globalized. These globalization processes have relied on logistics to be able to offer better door-to-door services. In Spain, this trend has a direct impact on ports, so that the trend is towards Ports 4.0. For this reason, Puertos del Estado has launched the Ports 4.0 project. In order to have a diagnosis of the current situation and to face the Ports 4.0 project, it is proposed to use the Business Observation Tool, as it not only allows to analyze the state of the conditions of the Ports 4.0 project of the Spanish Port System, but also allows to establish the possible scenarios of the Ports 4.0 proposal. The main conclusion of its application is that the Spanish Port System is well positioned towards the so-called Smart Ports or Ports 4.0, although a new port model is necessary in order to develop it.