The establishment and improvement of early warning systems has been proved to contribute significantly to the reduction of injuries and losses to life and property before, during and after a crisis situation. However, in the context of alerting and communications to the population in crisis, the effectiveness of crisis management strategies and applied technologies to support them and to disseminate alerts at a given point in time will be influenced by several factors. These include the level of interoperability and common awareness between authorities involved, the perception of social crowds receiving the alerts, the role played by emerging new media, such as social networks, and the level of acceptance and penetration of applied communications technologies in the population as well as in the involved authorities.
The Alert4All vision is to achieve significant improvements in the effectiveness of alert and communications systems in crisis by providing solutions to align alert procedures and processes to:
- available and emerging technologies and
- trends in social behaviour and use of new media.
 International Federation of Red Cross and Red Crescent Societies, “World Disasters Report 2009; Focus on Early Warning, Early Action”, available in http://reliefweb.int/node/24311