The use of a GPS tracking system has led to a change in the labour process of reindeer husbandry, as the herd can be monitored and followed remotely on computers. It increases knowledge about migration routes and use of grazing areas as the movements are registered by the tracking devices. With the aid of the GPS tracking system, vehicle mileage could be reduced and predator attacks on the herd can be detected at an early stage. These attacks are a very serious concern for Sami herdsmen due to economic losses.