ABSTRACT
Wireless Sensor Networks have gained a lot of attention lately. Due to technological advances, building small-sized, energy-efficient reliable devices, capable of communicating with each other and organizing themselves in ad hoc networks have become possible. These devices have brought a new perspective to the world of computers as we know it: they can be embedded into the environment in such a way that the user is unaware of them. There is no need for reconfiguration and maintenance as the network organizes itself to inform the users of the most relevant events detected or to assist them in their activity.
