A fast-paced process of hybridization of man and technology, organization and technology and society and technology is currently sweeping the world. This process requires a way of (scientific) thinking that takes hybrid systems as the starting point. This way of thinking gives hybrid systems an increasing need to be interlinked, which enables them to exchange and share information through these links. This development of linking (hybrid) systems to enable them to exchange and share information, can also be denoted as the realization of interoperability between (hybrid) systems. Five principles from Luhmann’s systems theory can be of help to understand interoperability. Interoperability enables (hybrid) systems to join random coalitions and networks. The network centric warfare concept is currently the basis for international efforts for the development and application of interoperability that
would enable armed forces to act effectively and efficiently. In this paper is demonstrated what Luhmann’s system’s theory can learn us.