1. A method for using a topology editor to prescribe a device notified in response to an event related to the operation of a data network and said event comprising the steps of: defining said event pertaining to said operation of a data network, wherein said operation concerns the status of the data network or a device of said data network; assigning at least one device of said data network to said event by use of said topology editor; assigning a rule to said event, wherein said rule defines at least one condition for triggering a notification of said event to said assigned device, and said condition is to be activated when matched to a notification of the operation of said data network.