Implementing System Wide Information Management (swim) for ATM systems using a distributed MILS architecture

System Wide Information Management (SWIM) is attracting more and more interest as a design concept for Air Traffic Management (ATM). It improves data exchange between various applications in different domains such as flight data management, weather, and aeronautical information management and thereby enables new and improved services. Driven by emerging technologies, such as cloud computing and high-speed wide area networks, advanced system integration, like voice and data integration, becomes technically feasible. However, as ATM is a safety-critical technology great care must be taken, such that the information exchange remains secure and timely. This is a non-trivial design challenge, given that the producers and consumers of information, as well as the information itself, frequently reside in different domains, necessitating some form of cross domain solution.