Forest fire prevention requires the ability to answer a number of questions such as: Where could a fire occur? When could it occur? What form will it take? In order to obtain answers, we need correct knowledge of hazardous situations in terms of time and space. We need to be aware of these situations in order to "mobilize" prevention suppression resources to avoid a fire breaking out or, if this occurs, to limit its effects to the minimum. The characteristics of the environment in which these fires can occur are very varied, particularly in a Mediterranean setting such as the Valencia region (Autonomous Community of Valencia) where risk factors are changeable and, in many cases, are due to a complex interrelation of multiple, and diverse factors. Managers, when taking decisions, must have at their disposal support tools which must be reliable and adequate to suit the social and climatic features of the physical environment in the area they are to be used. The Integrated Management System, set up in the Valencia region, has been designed as a dynamic tool, backed by a Geographical Information System but rather more broad-based, as it is equipped to manage and produce a wide range of information, providing a service to and obtaining feedback from the forest fire prevention programmes implemented by the Valencia region.