A science-based software tool for the iPad allows first responders to learn from models of building damage and other conditions that occur after a disaster. Developed by Sandia National Laboratories, the Standard Unified Modeling, Mapping and Integration Toolkit (SUMMIT) enables firefighters, medics and police officers to visualize damaged buildings. The tool will allow them to tap into existing models that feature details of buildings, infrastructure and casualties. During exercises, it will visualize an integrated scenario and make it available to all participants in a master control cell. The U.S. Department of Homeland Security's Science and Technology Directorate funded and directed SUMMIT's development.