Correlation of data of a control and/or data transmission system and of a system model representing it

A data-processing device for testing the functionality of a system element to be used inside a control and/or data transmission system, wherein the system comprises a plurality of positions connected respectively by a signal path inside the system, or for designing a system model for modeling the system, comprising:

• a signal unit that, when coupled to a system element that is constructed for a first predetermined position from the plurality of positions, reads out, queries or receives a signal output of the constructed system element in response to a predetermined signal input applied by the signal unit at the constructed system element, wherein the predetermined signal input corresponds with a signal outputted from a second predetermined position from the plurality of positions, which is different from the first predetermined position;
• an evaluation unit constructed for evaluating the signal output from the first predetermined position as a function of the predetermined signal input in order to analyze the constructed system element and for automatically recognizing a system element identifier;
• a storage unit for providing readable storage of transmission functions of the system model;
• and
• a computer-assisted processing unit, wherein the computer-assisted processing unit either:
• i) analyzes the automatically recognized system element identifier using at least one stored transmission function of the storage unit in order to associate the automatically recognized system element identifier with the at least one stored transmission function for associating the analyzed constructed system element with the at least one stored transmission function, or
• ii) calculates a transmission function using the automatically recognized system element identifier in order to associate the automatically recognized system element identifier with the calculated transmission function for associating the analyzed constructed system element with the calculated transmission function.