An integration system and method, for a more efficient integration of communication devices in a distributed device management system (DMS), has several FDI and OPC UA components to be applied to and/or integrated in a DMS and providing one or more processing units, in particular at least one discovery unit as well as executable data structures, to discover and determine distributed operable communication servers and/or devices, in particular independent from their location, so to say independent whether they are located within the components of the DMS like for example the FDI servers, the FDI clients, OPC UA discovery servers or stand-alone in the engineering/control/field network, as well as to a corresponding DMS comprising said system and/or performing said method.