Learn More
—Network security is a major issue affecting SCADA systems designed and deployed in the last decade. Simulation of network attacks on a SCADA system presents certain challenges, since even a simple SCADA system is composed of models in several domains and simulation environments. Here we demonstrate the use of C2WindTunnel to simulate a plant and its(More)
– Modern Network Centric Operations drive the complexity of Information Fusion and Command and Control (C2) Systems. Driving this complexity further is the interplay dynamics of the human element, information systems, and communication networks. The lack of low-cost realistic experimental context limits the testing, evaluation, and further development of(More)
Virtual evaluation of complex Cyber-Physical Systems (CPS) with a number of tightly integrated domains such as physical, mechanical, electrical, thermal , cyber, etc. demand the use of heterogeneous simulation environments. Our previous effort with C2 Wind Tunnel (C2WT) attempted to solve the challenges of evaluating these complex systems as-a-whole, by(More)
Service-Oriented Architectures (SOAs) are increasingly being used for designing and building large-scale networked and distributed systems. Catering to the complex and dynamically varying needs of business applications/clients, these systems must usually be realized by dynamically composing a variety of network-available services. Evaluation of large-scale(More)
An of-line scheduling algorithm considers resource. precedence, and synchroniiariori requiremenrs of a task graph, and generates a schedule guaranteeing its timing reqiiiremenrs. This schedule must, howe~~er, be executed in a d y a m i c arid rrnpredictoble operating envirotiment nhere resources may fail arid tasks may ereciite loriger than eryected. To(More)
Cyber-Physical Systems (CPS) [1] are engineered systems that require tight interaction between physical and computational components. Designing a CPS is highly challenging [2] because these systems are inherently complex, need significant effort to describe and evaluate a vast set of cross-disciplinary interactions, and require seamless meshing of physical(More)
Modern planning and scheduling systems are capable of dealing with the size and complexity of many real world problems. However, mission critical planning is still often done by humans. Even if only a couple of plans are produced (" Master Plan " and " Plan B "), human experts evaluate multiple alternatives, think of contingencies , consider the likelihood(More)