For crisis management, timeliness is important, but so is accuracy. How many reports in this sample were not verified (NO in the Verified column)? You can use Excel's count if function to determine the number of NOs and YESes. What is the percentage of total reports that have not been verified?

The Ushahidi platform is open source software that organizations use to aggregate, map, and visualize information about disasters or other emergencies. Originally developed to map reports of violence in Kenya after an election, Ushahidi, which means "testimony" in Swahili, continues to be improved by software developers around the world. It can be adapted to the needs of different communities experiencing a variety of emergencies, from social unrest and violence to major floods. Combined with another open source product called Swift River, the platform can help filter and manage real-time data coming in through Twitter, text messages, email, the web, or other sources.