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Service-Oriented Architectures (SOA) provide the advantage of facilitating integration and information exchange between different administrative domains (e.g., within a coalition). However, in order to support this in a secure manner, cross-domain access control is required. Various solutions to this have been developed with civilian Internet applications in mind. In this paper, the authors consider the architectural approaches (i.e., communication patterns) used by these existing solutions and find that these approaches are not suitable for use in many military systems due to differing connectivity characteristics and availability requirements.
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