Abstract: Aspects of the application relate to computer-implemented methods, process control devices, and a computer program. According to one aspect, a computer-implemented method for controlling a process in a plurality of first scale vessels via a first process control device is provided. Each of the first scale vessels contains fluid and the process is for producing a chemical, pharmaceutical, biopharmaceutical and/or biological product. The method comprises controlling, by the first process control device and at least partially in parallel, the process in each of the first scale vessels. The method can include periodically determining, prior to an assigning decision and at a first frequency, first sets of process parameter values for each of the process parameters from each of the first scale vessels.