The document discusses how building performance can enable operational resilience by being tailored to user needs before, during, and after threats. It identifies various threats like targeted attacks, weather extremes, seismic events, and fires. It provides examples of performance criteria for different building and user types, like structures performing prior to, during, and after events, and tenants being able to reoccupy buildings the next day. The conclusion is that resilience requires defining threats, understanding user needs, designing for performance levels and threat levels, enabling business continuity, and improving community resilience.