A system for providing sensor data analysis to a plurality of users is disclosed. The system includes comprising an interface for receiving sensor data from a plurality of sensors distributed over a plurality of localities, a locality being associated with one or more sensors; a data storage configured to store said sensor data in association with a plurality of nodes, one node being associated to one locality, and sensor data from one specific sensor being associated to the corresponding node, and to store for each node a relationship to itself and to all its sub-nodes as part of a hierarchical structure of said nodes; and a processing entity configured to run one or more instances for each of a plurality of users, each instance accessing said data storage for analyzing the sensor data in response to a user request.