Abstract: The invention relates to a device and a method for transmitting simulation models (11, 18) between simulators (10, 17), the device having a first input/output element (22), to which the simulation model (11) is transmitted from the first simulator (11), having a processing unit (24), which, after the simulation model (11) has been transmitted, separates the model into individual operators (12) and stores the operator association (16), wherein the operators (12) that can be integrated, as external operators (19) and with semantic equivalence, by the second simulator (17) with the aid of the operator association (16) can be compiled into an operator library (12 [sic]), the device further having a second input/output element (23), which outputs the operator library and additionally provides the operator association (16).