EDPS visualisation of the full X-shooter processing cascade specification. The topology of the processing cascade is essentially the same as in Fig. 1, with one extra task called ‘flat_strategy’. Each step in Fig. 1 is now expanded with the full information. The individual steps in Fig. 1 are either a single task or a subworkflow with several tasks, as indicated in the header of each box. The colour-coding of the header distinguishes between calibration steps that produce calibration products (green) and science steps that could serve as science target (blue). The subworkflow flat_strategy does not produce any products itself and only serves to redirect products produced by other steps.