The capitalization analysis that will be developed in this document, centers its interest in the acknowledgement of virtues, rights and wrongs currently existing in the implementation of projects, focused on the reduction of risks in large cities, and the implementation of the Analysis of Vulnerabilities and Capacities –AVC- in order to incorporate knowledge, practices and positive attitudes that will allow to increase the response of the most vulnerable population before natural disasters. This analysis hopes to make itself in a very important axis of reflection for knowing, understanding and measuring the urban community within the context of risk. This document will make a special emphasis in the community development and the way in which their languages, imaginaries and perceptions must dialog with the technical structure of procedures and contents developed by the institutions responsible for the prevention, mitigation and attention of disasters in each country. Published in 2008.