Abstract: The goal of this article is to introduce a plastic architecture of a survey system dedicated to any kind of geographical area that requires to be observed. The principle of this architecture is to allow to change dynamically the set of sensors that is used to monitor the area and also to provide an analyze system able to deal with this unstable set of sensors. Based on Event-Driven Architecture (EDA) technology, such a system does not provide new features compared with traditional set of static sensors connected through cables to dozens of bulbs lighting when a predefined subset of measures is not in the expected range. However, the introduced architecture provides a completely agile and dynamic system of measurement where neither the network of sensors nor the system of measure interpretation is static.