1. A computer system for registering sensors, comprising: an interface adapted to receive a query, wherein the query is related to a specific event for a target system state, wherein the specific event is associated with a specific activity pattern; a decomposer configured to decompose the query into semantic expressions describing the target system state, and to identify a database entry associated with a semantic expression resulting from the decomposition; a retriever configured to retrieve behavioral data which corresponds to the identified database entry, wherein the behavioral data includes dependencies between elements of the behavioral data describing the specific activity pattern, wherein the specific activity pattern is associated with a plurality of activity data structures; and a registration component configured to register at least one sensor, wherein the at least one sensor is assigned to the plurality of activity data structures.