Organisations nowadays are oriented towards more efficient use of information than before, which is achieved through systematic information management. The starting point of their business is based on stored data, that is, current information, and by applying business intelligence, they analyse and use statistics to examine the past and current stages in a particular business environment. In this way, they plan the direction in which they want to develop and which will increase the quality of business and thereby achieve a competitive advantage. In order for a business system to be long-term sustainable, it must have a separate information system that connects the execution of business activities. The information system is typically supported by information technology that is important for decisionmaking. It is crucial to manage the information system, as well as the organisation, which is also a business system. All of this requires complete, accurate, and precise information. In a practical sense, information technology is considered beneficial because it will enhance productivity and increase the competitiveness of the business process. New Information and communication technologies (ICT) are the foundation for the development of the fifth generation of ports, three Croatian ports (that are the subjects of this research) are examples of the desire to apply a new method of business and to implement the Port Community System, which includes the regions of the northern Adriatic, central and southern Dalmatia. One tool that facilitates the interaction between port stakeholders is the Port Community System (PCS), which has been the subject of numerous studies in recent years, this system reduces the cost or difficulty of conducting port activities.