Credible information about risk is anessential element of Disaster Risk Management (DRM).Thousands of times each year, disasters reveal decisionsabout how to apply this information to the management ofrisk. When a school collapses during a moderate earthquake,citizens may point to the failure of the construction firmto adhere to building standards, or to the failure of agovernment to enforce building codes, or to the educationministry that should have retrofitted the structure tobetter resist known seismic risks. In each case, criticalinformation was missing, information that might have drivena different choice about architectural designs, buildingmaterials, the site for the building (siting), or actions toremediate a known vulnerability. Across the disaster riskmanagement cycle, institutions are now engaged in a processto build this stock of information. The aim is to improvethe chain of decision making across an entire system, fromthe donors who fund retrofitting of schools to the parentswho need to know how safe their local schools are.