<p>In a system of automation devices (2... 5) connected via a bus (7) and provided with objects in the form of software functional components (15, 16), some of the objects being related to one another, consistent relationships between objects are created with the aid of identifying characteristics (FB_13, FB_14) which are either unique and generated by an algorithm or quasi-unique and produced by a random number generator. The invention can be used in process control systems.</p>
