1. A method for the rule-based monitoring of a component (C 1 ) added to a service-oriented architecture (SOA), the SOA comprising a plurality of components (C 2 ,. .. , Cn) being monitored by a plurality of monitoring components (M 2 ,. .. , Mn), the method comprising: a. selecting a component (C 2 ) from the plurality of components (C 2 ,. .. , Cn) of the SOA which is similar to the added component (C 1 ) based on a similarity-metric; b. selecting at least one rule (R 2 ) from the monitoring component (M 2 ) of the selected component (C 2 ), wherein the at least one rule (R 2 ) has already been validated during the operation of the SOA; c. adding the at least one rule (R 2 ) to a new monitoring component (M 1 ) of the added component (C 1 ); and d. providing the new monitoring component (M 1 ) and the at least one added rule (R 2 ) to a learning-phase to determine at least one parameter of the at least one rule (R 2 ).