In a method to test a clinical and/or medical-technical system and a method for controlling medical-technical examination workflows in a clinical and/or medical-technical system, medical examination workflows in the appertaining system are simulated. For this purpose, a process workflow plan is selected from a number of process workflow plans dependent on an examination task, each of the process workflow plans including a number of linked process units with which system component of the system are respectively associated. Each process workflow plan also includes an input parameter set, an output parameter set and a transfer function that is dependent on the examination task and/or the associated system component. Respective output parameter values and/or performance data for the individual process units are then determined from a number of input parameter values for the appertaining process units on the basis of the transfer function. Respective output parameter values of a process unit are used as input parameter values for a subsequent process unit within the process workflow plan.