Abstract
In our current network-based world, cooperation between different participants in all areas, for example political, defense, economic or cultural, has an increasing role. Because of this the importance of interoperability between participants is also increasing. The central presence of information also highlights the concept and influencing factors of interoperability. The participants can be individuals, organizations or other groups, where a comprehensive flow of information and the constant presence of the information space is essential for its effective and efficient activity. Interoperability issues are also a key component of the military transformation process of NATO, so basic information questions should be answered to achieve the target system. Nowadays, interoperability requirements and definitions are subject to periodic changes in order to facilitate high-tech joint exercises using advanced technology.