Concept Technical Approach Application Collaborations Balaban, C., Bidanda, B., Shuman, L., Sochats, K., D4S2 - Dynamic Discrete Disaster Decision Simulation System University of Pittsburgh, Pittsburgh, PA 15260, 412-624-9416, sochats@sis.pitt.edu Concept Technical Approach Develop a disaster scenario. 2. Using GIS, delineate the geographic scope of the disaster and extract the relevant geographic features, transportation routes, buildings, population and other important entities. 3. Build the decision models and simulation problem. 4.  Operate the simulation and its interacting decision models. 5.  Dynamically display the results of the simulation/decision process on a user interface.  6. Analyze the simulation results. Use simulation of natural and man-made disaster scenarios to explore: Interoperability issues decision timeliness and quality as a function of situational awareness The effects of training, policy, planning, order of engagement and jurisdiction on response efficiency and effectiveness Risk assessment Application Collaborations University of Pittsburgh: Carey Balaban, School of Medicine Bopaya Bidanda, School of Engineering Larry Shuman, School of Engineering Ken Sochats, School of Information Sciences Allegheny County Funding: University of Pittsburgh Research Fund Emergency Managers and government officials must integrate massive amounts of information of many types and divergent sources in order to make effective decisions regarding the allocation of resources in an emergency. D4S2 provides decision makers with an active laboratory to test policies, training, strategy and tactics in a simulated real-life decision scenario.