The invention relates to a management network with at least one managing system (2) and at least one managed system (10), for telecom or open systems. Said managed system includes physical and/or logical resources, which by the managing system are considered and managed as managed objects in the form of data images of the resources. The managing system utilizes for its operations directed towards the managed system a management information model (8) of the managed system, which includes a description of all managed objects, adapted to the mode of operation of the managing system. The management network includes, besides the managed system (10), a generic manager (4) and a representation (6) of the management information model, where the performance of the generic manager during operation is determined by this model representation.