Using certificates for distributed authorizations in computer network systems has been discussed in the literature. However real implementations of the concept are rarely seen. In...
Access to distributed databases containing tuples collected about mobile physical objects requires information about the objects’ trajectories. Existing access control models ca...
The Service Oriented Architecture (SOA) is used extensively in ubiquitous computing environments. Using external service orchestration, services can be composed into applications....
Management of a modern enterprise is based on the assumption that executive reports of lower-layer management are faithful to what is actually happening in the field. As some well...
In this paper, we present the design of system of databases (SyDb). We also give the design and implementation of a Java API for global querying and updates on the SyDb. The datab...